655606980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{691}}^1$

素因数の和:967

約数の個数: 192

約数和(自身を含む): 2343720960

約数和(自身を除く): 1688113980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 251, 252, 270, 315, 378, 420, 502, 540, 630, 691, 753, 756, 945, 1004, 1255, 1260, 1382, 1506, 1757, 1890, 2073, 2259, 2510, 2764, 3012, 3455, 3514, 3765, 3780, 4146, 4518, 4837, 5020, 5271, 6219, 6777, 6910, 7028, 7530, 8292, 8785, 9036, 9674, 10365, 10542, 11295, 12438, 13554, 13820, 14511, 15060, 15813, 17570, 18657, 19348, 20730, 21084, 22590, 24185, 24876, 26355, 27108, 29022, 31095, 31626, 33885, 35140, 37314, 41460, 43533, 45180, 47439, 48370, 52710, 58044, 62190, 63252, 67770, 72555, 74628, 79065, 87066, 93285, 94878, 96740, 105420, 124380, 130599, 135540, 145110, 158130, 173441, 174132, 186570, 189756, 217665, 237195, 261198, 290220, 316260, 346882, 373140, 435330, 474390, 520323, 522396, 652995, 693764, 867205, 870660, 948780, 1040646, 1214087, 1305990, 1560969, 1734410, 2081292, 2428174, 2601615, 2611980, 3121938, 3468820, 3642261, 4682907, 4856348, 5203230, 6070435, 6243876, 7284522, 7804845, 9365814, 10406460, 10926783, 12140870, 14569044, 15609690, 18211305, 18731628, 21853566, 23414535, 24281740, 31219380, 32780349, 36422610, 43707132, 46829070, 54633915, 65560698, 72845220, 93658140, 109267830, 131121396, 163901745, 218535660, 327803490, 655606980]

約数ペア:

[(1, 655606980), (2, 327803490), (3, 218535660), (4, 163901745), (5, 131121396), (6, 109267830), (7, 93658140), (9, 72845220), (10, 65560698), (12, 54633915), (14, 46829070), (15, 43707132), (18, 36422610), (20, 32780349), (21, 31219380), (27, 24281740), (28, 23414535), (30, 21853566), (35, 18731628), (36, 18211305), (42, 15609690), (45, 14569044), (54, 12140870), (60, 10926783), (63, 10406460), (70, 9365814), (84, 7804845), (90, 7284522), (105, 6243876), (108, 6070435), (126, 5203230), (135, 4856348), (140, 4682907), (180, 3642261), (189, 3468820), (210, 3121938), (251, 2611980), (252, 2601615), (270, 2428174), (315, 2081292), (378, 1734410), (420, 1560969), (502, 1305990), (540, 1214087), (630, 1040646), (691, 948780), (753, 870660), (756, 867205), (945, 693764), (1004, 652995), (1255, 522396), (1260, 520323), (1382, 474390), (1506, 435330), (1757, 373140), (1890, 346882), (2073, 316260), (2259, 290220), (2510, 261198), (2764, 237195), (3012, 217665), (3455, 189756), (3514, 186570), (3765, 174132), (3780, 173441), (4146, 158130), (4518, 145110), (4837, 135540), (5020, 130599), (5271, 124380), (6219, 105420), (6777, 96740), (6910, 94878), (7028, 93285), (7530, 87066), (8292, 79065), (8785, 74628), (9036, 72555), (9674, 67770), (10365, 63252), (10542, 62190), (11295, 58044), (12438, 52710), (13554, 48370), (13820, 47439), (14511, 45180), (15060, 43533), (15813, 41460), (17570, 37314), (18657, 35140), (19348, 33885), (20730, 31626), (21084, 31095), (22590, 29022), (24185, 27108), (24876, 26355)]