1680491820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{631}}^1$

素因数の和:1040

約数の個数: 192

約数和(自身を含む): 5718214656

約数和(自身を除く): 4037722836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 373, 420, 476, 510, 595, 631, 714, 746, 1020, 1119, 1190, 1262, 1428, 1492, 1785, 1865, 1893, 2238, 2380, 2524, 2611, 3155, 3570, 3730, 3786, 4417, 4476, 5222, 5595, 6310, 6341, 7140, 7460, 7572, 7833, 8834, 9465, 10444, 10727, 11190, 12620, 12682, 13055, 13251, 15666, 17668, 18930, 19023, 21454, 22085, 22380, 25364, 26110, 26502, 31332, 31705, 32181, 37860, 38046, 39165, 42908, 44170, 44387, 52220, 53004, 53635, 63410, 64362, 66255, 75089, 76092, 78330, 88340, 88774, 95115, 107270, 126820, 128724, 132510, 133161, 150178, 156660, 160905, 177548, 190230, 214540, 221935, 225267, 235363, 265020, 266322, 300356, 321810, 375445, 380460, 443870, 450534, 470726, 532644, 643620, 665805, 706089, 750890, 887740, 901068, 941452, 1126335, 1176815, 1331610, 1412178, 1501780, 1647541, 2252670, 2353630, 2663220, 2824356, 3295082, 3530445, 4001171, 4505340, 4707260, 4942623, 6590164, 7060890, 8002342, 8237705, 9885246, 12003513, 14121780, 16004684, 16475410, 19770492, 20005855, 24007026, 24713115, 28008197, 32950820, 40011710, 48014052, 49426230, 56016394, 60017565, 80023420, 84024591, 98852460, 112032788, 120035130, 140040985, 168049182, 240070260, 280081970, 336098364, 420122955, 560163940, 840245910, 1680491820]

約数ペア:

[(1, 1680491820), (2, 840245910), (3, 560163940), (4, 420122955), (5, 336098364), (6, 280081970), (7, 240070260), (10, 168049182), (12, 140040985), (14, 120035130), (15, 112032788), (17, 98852460), (20, 84024591), (21, 80023420), (28, 60017565), (30, 56016394), (34, 49426230), (35, 48014052), (42, 40011710), (51, 32950820), (60, 28008197), (68, 24713115), (70, 24007026), (84, 20005855), (85, 19770492), (102, 16475410), (105, 16004684), (119, 14121780), (140, 12003513), (170, 9885246), (204, 8237705), (210, 8002342), (238, 7060890), (255, 6590164), (340, 4942623), (357, 4707260), (373, 4505340), (420, 4001171), (476, 3530445), (510, 3295082), (595, 2824356), (631, 2663220), (714, 2353630), (746, 2252670), (1020, 1647541), (1119, 1501780), (1190, 1412178), (1262, 1331610), (1428, 1176815), (1492, 1126335), (1785, 941452), (1865, 901068), (1893, 887740), (2238, 750890), (2380, 706089), (2524, 665805), (2611, 643620), (3155, 532644), (3570, 470726), (3730, 450534), (3786, 443870), (4417, 380460), (4476, 375445), (5222, 321810), (5595, 300356), (6310, 266322), (6341, 265020), (7140, 235363), (7460, 225267), (7572, 221935), (7833, 214540), (8834, 190230), (9465, 177548), (10444, 160905), (10727, 156660), (11190, 150178), (12620, 133161), (12682, 132510), (13055, 128724), (13251, 126820), (15666, 107270), (17668, 95115), (18930, 88774), (19023, 88340), (21454, 78330), (22085, 76092), (22380, 75089), (25364, 66255), (26110, 64362), (26502, 63410), (31332, 53635), (31705, 53004), (32181, 52220), (37860, 44387), (38046, 44170), (39165, 42908)]