15695017780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{208877}}^1$

素因数の和:208933

約数の個数: 72

約数和(自身を含む): 37705821048

約数和(自身を除く): 22010803268

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 289, 340, 442, 578, 884, 1105, 1156, 1445, 2210, 2890, 3757, 4420, 5780, 7514, 15028, 18785, 37570, 75140, 208877, 417754, 835508, 1044385, 2088770, 2715401, 3550909, 4177540, 5430802, 7101818, 10861604, 13577005, 14203636, 17754545, 27154010, 35509090, 46161817, 54308020, 60365453, 71018180, 92323634, 120730906, 184647268, 230809085, 241461812, 301827265, 461618170, 603654530, 784750889, 923236340, 1207309060, 1569501778, 3139003556, 3923754445, 7847508890, 15695017780]

約数ペア:

[(1, 15695017780), (2, 7847508890), (4, 3923754445), (5, 3139003556), (10, 1569501778), (13, 1207309060), (17, 923236340), (20, 784750889), (26, 603654530), (34, 461618170), (52, 301827265), (65, 241461812), (68, 230809085), (85, 184647268), (130, 120730906), (170, 92323634), (221, 71018180), (260, 60365453), (289, 54308020), (340, 46161817), (442, 35509090), (578, 27154010), (884, 17754545), (1105, 14203636), (1156, 13577005), (1445, 10861604), (2210, 7101818), (2890, 5430802), (3757, 4177540), (4420, 3550909), (5780, 2715401), (7514, 2088770), (15028, 1044385), (18785, 835508), (37570, 417754), (75140, 208877)]