981918990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{12163}}^1$

素因数の和:12215

約数の個数: 128

約数和(自身を含む): 2942714880

約数和(自身を除く): 1960795890

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 26, 27, 30, 39, 45, 46, 54, 65, 69, 78, 90, 115, 117, 130, 135, 138, 195, 207, 230, 234, 270, 299, 345, 351, 390, 414, 585, 598, 621, 690, 702, 897, 1035, 1170, 1242, 1495, 1755, 1794, 2070, 2691, 2990, 3105, 3510, 4485, 5382, 6210, 8073, 8970, 12163, 13455, 16146, 24326, 26910, 36489, 40365, 60815, 72978, 80730, 109467, 121630, 158119, 182445, 218934, 279749, 316238, 328401, 364890, 474357, 547335, 559498, 656802, 790595, 839247, 948714, 1094670, 1398745, 1423071, 1581190, 1642005, 1678494, 2371785, 2517741, 2797490, 2846142, 3284010, 3636737, 4196235, 4269213, 4743570, 5035482, 7115355, 7273474, 7553223, 8392470, 8538426, 10910211, 12588705, 14230710, 15106446, 18183685, 21346065, 21820422, 25177410, 32730633, 36367370, 37766115, 42692130, 54551055, 65461266, 75532230, 98191899, 109102110, 163653165, 196383798, 327306330, 490959495, 981918990]

約数ペア:

[(1, 981918990), (2, 490959495), (3, 327306330), (5, 196383798), (6, 163653165), (9, 109102110), (10, 98191899), (13, 75532230), (15, 65461266), (18, 54551055), (23, 42692130), (26, 37766115), (27, 36367370), (30, 32730633), (39, 25177410), (45, 21820422), (46, 21346065), (54, 18183685), (65, 15106446), (69, 14230710), (78, 12588705), (90, 10910211), (115, 8538426), (117, 8392470), (130, 7553223), (135, 7273474), (138, 7115355), (195, 5035482), (207, 4743570), (230, 4269213), (234, 4196235), (270, 3636737), (299, 3284010), (345, 2846142), (351, 2797490), (390, 2517741), (414, 2371785), (585, 1678494), (598, 1642005), (621, 1581190), (690, 1423071), (702, 1398745), (897, 1094670), (1035, 948714), (1170, 839247), (1242, 790595), (1495, 656802), (1755, 559498), (1794, 547335), (2070, 474357), (2691, 364890), (2990, 328401), (3105, 316238), (3510, 279749), (4485, 218934), (5382, 182445), (6210, 158119), (8073, 121630), (8970, 109467), (12163, 80730), (13455, 72978), (16146, 60815), (24326, 40365), (26910, 36489)]