420917940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{347}}^1$

素因数の和:678

約数の個数: 144

約数和(自身を含む): 1340696448

約数和(自身を除く): 919778508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 293, 345, 347, 414, 460, 586, 690, 694, 828, 879, 1035, 1041, 1172, 1380, 1388, 1465, 1735, 1758, 2070, 2082, 2637, 2930, 3123, 3470, 3516, 4140, 4164, 4395, 5205, 5274, 5860, 6246, 6739, 6940, 7981, 8790, 10410, 10548, 12492, 13185, 13478, 15615, 15962, 17580, 20217, 20820, 23943, 26370, 26956, 31230, 31924, 33695, 39905, 40434, 47886, 52740, 60651, 62460, 67390, 71829, 79810, 80868, 95772, 101085, 101671, 119715, 121302, 134780, 143658, 159620, 202170, 203342, 239430, 242604, 287316, 303255, 305013, 359145, 404340, 406684, 478860, 508355, 606510, 610026, 718290, 915039, 1016710, 1213020, 1220052, 1436580, 1525065, 1830078, 2033420, 2338433, 3050130, 3660156, 4575195, 4676866, 6100260, 7015299, 9150390, 9353732, 11692165, 14030598, 18300780, 21045897, 23384330, 28061196, 35076495, 42091794, 46768660, 70152990, 84183588, 105229485, 140305980, 210458970, 420917940]

約数ペア:

[(1, 420917940), (2, 210458970), (3, 140305980), (4, 105229485), (5, 84183588), (6, 70152990), (9, 46768660), (10, 42091794), (12, 35076495), (15, 28061196), (18, 23384330), (20, 21045897), (23, 18300780), (30, 14030598), (36, 11692165), (45, 9353732), (46, 9150390), (60, 7015299), (69, 6100260), (90, 4676866), (92, 4575195), (115, 3660156), (138, 3050130), (180, 2338433), (207, 2033420), (230, 1830078), (276, 1525065), (293, 1436580), (345, 1220052), (347, 1213020), (414, 1016710), (460, 915039), (586, 718290), (690, 610026), (694, 606510), (828, 508355), (879, 478860), (1035, 406684), (1041, 404340), (1172, 359145), (1380, 305013), (1388, 303255), (1465, 287316), (1735, 242604), (1758, 239430), (2070, 203342), (2082, 202170), (2637, 159620), (2930, 143658), (3123, 134780), (3470, 121302), (3516, 119715), (4140, 101671), (4164, 101085), (4395, 95772), (5205, 80868), (5274, 79810), (5860, 71829), (6246, 67390), (6739, 62460), (6940, 60651), (7981, 52740), (8790, 47886), (10410, 40434), (10548, 39905), (12492, 33695), (13185, 31924), (13478, 31230), (15615, 26956), (15962, 26370), (17580, 23943), (20217, 20820)]