1639118800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:318

約数の個数: 240

約数和(自身を含む): 4530138624

約数和(自身を除く): 2891019824

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 61, 62, 80, 88, 100, 110, 122, 124, 155, 176, 197, 200, 220, 244, 248, 275, 305, 310, 341, 394, 400, 440, 488, 496, 550, 610, 620, 671, 682, 775, 788, 880, 976, 985, 1100, 1220, 1240, 1342, 1364, 1525, 1550, 1576, 1705, 1891, 1970, 2167, 2200, 2440, 2480, 2684, 2728, 3050, 3100, 3152, 3355, 3410, 3782, 3940, 4334, 4400, 4880, 4925, 5368, 5456, 6100, 6107, 6200, 6710, 6820, 7564, 7880, 8525, 8668, 9455, 9850, 10736, 10835, 12017, 12200, 12214, 12400, 13420, 13640, 15128, 15760, 16775, 17050, 17336, 18910, 19700, 20801, 21670, 24034, 24400, 24428, 26840, 27280, 30256, 30535, 33550, 34100, 34672, 37820, 39400, 41602, 43340, 47275, 48068, 48856, 53680, 54175, 60085, 61070, 67100, 67177, 68200, 75640, 78800, 83204, 86680, 94550, 96136, 97712, 104005, 108350, 120170, 122140, 132187, 134200, 134354, 136400, 151280, 152675, 166408, 173360, 189100, 192272, 208010, 216700, 240340, 244280, 264374, 268400, 268708, 300425, 305350, 332816, 335885, 372527, 378200, 416020, 433400, 480680, 488560, 520025, 528748, 537416, 600850, 610700, 660935, 671770, 745054, 756400, 832040, 866800, 961360, 1040050, 1057496, 1074832, 1201700, 1221400, 1321870, 1343540, 1490108, 1664080, 1679425, 1862635, 2080100, 2114992, 2403400, 2442800, 2643740, 2687080, 2980216, 3304675, 3358850, 3725270, 4097797, 4160200, 4806800, 5287480, 5374160, 5960432, 6609350, 6717700, 7450540, 8195594, 8320400, 9313175, 10574960, 13218700, 13435400, 14901080, 16391188, 18626350, 20488985, 26437400, 26870800, 29802160, 32782376, 37252700, 40977970, 52874800, 65564752, 74505400, 81955940, 102444925, 149010800, 163911880, 204889850, 327823760, 409779700, 819559400, 1639118800]

約数ペア:

[(1, 1639118800), (2, 819559400), (4, 409779700), (5, 327823760), (8, 204889850), (10, 163911880), (11, 149010800), (16, 102444925), (20, 81955940), (22, 74505400), (25, 65564752), (31, 52874800), (40, 40977970), (44, 37252700), (50, 32782376), (55, 29802160), (61, 26870800), (62, 26437400), (80, 20488985), (88, 18626350), (100, 16391188), (110, 14901080), (122, 13435400), (124, 13218700), (155, 10574960), (176, 9313175), (197, 8320400), (200, 8195594), (220, 7450540), (244, 6717700), (248, 6609350), (275, 5960432), (305, 5374160), (310, 5287480), (341, 4806800), (394, 4160200), (400, 4097797), (440, 3725270), (488, 3358850), (496, 3304675), (550, 2980216), (610, 2687080), (620, 2643740), (671, 2442800), (682, 2403400), (775, 2114992), (788, 2080100), (880, 1862635), (976, 1679425), (985, 1664080), (1100, 1490108), (1220, 1343540), (1240, 1321870), (1342, 1221400), (1364, 1201700), (1525, 1074832), (1550, 1057496), (1576, 1040050), (1705, 961360), (1891, 866800), (1970, 832040), (2167, 756400), (2200, 745054), (2440, 671770), (2480, 660935), (2684, 610700), (2728, 600850), (3050, 537416), (3100, 528748), (3152, 520025), (3355, 488560), (3410, 480680), (3782, 433400), (3940, 416020), (4334, 378200), (4400, 372527), (4880, 335885), (4925, 332816), (5368, 305350), (5456, 300425), (6100, 268708), (6107, 268400), (6200, 264374), (6710, 244280), (6820, 240340), (7564, 216700), (7880, 208010), (8525, 192272), (8668, 189100), (9455, 173360), (9850, 166408), (10736, 152675), (10835, 151280), (12017, 136400), (12200, 134354), (12214, 134200), (12400, 132187), (13420, 122140), (13640, 120170), (15128, 108350), (15760, 104005), (16775, 97712), (17050, 96136), (17336, 94550), (18910, 86680), (19700, 83204), (20801, 78800), (21670, 75640), (24034, 68200), (24400, 67177), (24428, 67100), (26840, 61070), (27280, 60085), (30256, 54175), (30535, 53680), (33550, 48856), (34100, 48068), (34672, 47275), (37820, 43340), (39400, 41602)]