18108740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{241}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 43684872

約数和(自身を除く): 25576132

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 241, 260, 289, 340, 442, 482, 578, 884, 964, 1105, 1156, 1205, 1445, 2210, 2410, 2890, 3133, 3757, 4097, 4420, 4820, 5780, 6266, 7514, 8194, 12532, 15028, 15665, 16388, 18785, 20485, 31330, 37570, 40970, 53261, 62660, 69649, 75140, 81940, 106522, 139298, 213044, 266305, 278596, 348245, 532610, 696490, 905437, 1065220, 1392980, 1810874, 3621748, 4527185, 9054370, 18108740]

約数ペア:

[(1, 18108740), (2, 9054370), (4, 4527185), (5, 3621748), (10, 1810874), (13, 1392980), (17, 1065220), (20, 905437), (26, 696490), (34, 532610), (52, 348245), (65, 278596), (68, 266305), (85, 213044), (130, 139298), (170, 106522), (221, 81940), (241, 75140), (260, 69649), (289, 62660), (340, 53261), (442, 40970), (482, 37570), (578, 31330), (884, 20485), (964, 18785), (1105, 16388), (1156, 15665), (1205, 15028), (1445, 12532), (2210, 8194), (2410, 7514), (2890, 6266), (3133, 5780), (3757, 4820), (4097, 4420)]