996419980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 2356816896

約数和(自身を除く): 1360396916

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 67, 68, 83, 85, 124, 134, 155, 166, 170, 268, 289, 310, 332, 335, 340, 415, 527, 578, 620, 670, 830, 1054, 1139, 1156, 1340, 1411, 1445, 1660, 2077, 2108, 2278, 2573, 2635, 2822, 2890, 4154, 4556, 5146, 5270, 5561, 5644, 5695, 5780, 7055, 8308, 8959, 10292, 10385, 10540, 11122, 11390, 12865, 14110, 17918, 19363, 20770, 22244, 22780, 23987, 25730, 27805, 28220, 35309, 35836, 38726, 41540, 43741, 44795, 47974, 51460, 55610, 70618, 77452, 87482, 89590, 94537, 95948, 96815, 111220, 119935, 141236, 172391, 174964, 176545, 179180, 189074, 193630, 218705, 239870, 344782, 353090, 378148, 387260, 437410, 472685, 479740, 600253, 689564, 706180, 743597, 861955, 874820, 945370, 1200506, 1487194, 1607129, 1723910, 1890740, 2401012, 2930647, 2974388, 3001265, 3214258, 3447820, 3717985, 5861294, 6002530, 6428516, 7435970, 8035645, 11722588, 12005060, 14653235, 14871940, 16071290, 29306470, 32142580, 49820999, 58612940, 99641998, 199283996, 249104995, 498209990, 996419980]

約数ペア:

[(1, 996419980), (2, 498209990), (4, 249104995), (5, 199283996), (10, 99641998), (17, 58612940), (20, 49820999), (31, 32142580), (34, 29306470), (62, 16071290), (67, 14871940), (68, 14653235), (83, 12005060), (85, 11722588), (124, 8035645), (134, 7435970), (155, 6428516), (166, 6002530), (170, 5861294), (268, 3717985), (289, 3447820), (310, 3214258), (332, 3001265), (335, 2974388), (340, 2930647), (415, 2401012), (527, 1890740), (578, 1723910), (620, 1607129), (670, 1487194), (830, 1200506), (1054, 945370), (1139, 874820), (1156, 861955), (1340, 743597), (1411, 706180), (1445, 689564), (1660, 600253), (2077, 479740), (2108, 472685), (2278, 437410), (2573, 387260), (2635, 378148), (2822, 353090), (2890, 344782), (4154, 239870), (4556, 218705), (5146, 193630), (5270, 189074), (5561, 179180), (5644, 176545), (5695, 174964), (5780, 172391), (7055, 141236), (8308, 119935), (8959, 111220), (10292, 96815), (10385, 95948), (10540, 94537), (11122, 89590), (11390, 87482), (12865, 77452), (14110, 70618), (17918, 55610), (19363, 51460), (20770, 47974), (22244, 44795), (22780, 43741), (23987, 41540), (25730, 38726), (27805, 35836), (28220, 35309)]