18983900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{859}}^1$

素因数の和:903

約数の個数: 72

約数和(自身を含む): 47028240

約数和(自身を除く): 28044340

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 859, 884, 1105, 1300, 1700, 1718, 2210, 3436, 4295, 4420, 5525, 8590, 11050, 11167, 14603, 17180, 21475, 22100, 22334, 29206, 42950, 44668, 55835, 58412, 73015, 85900, 111670, 146030, 189839, 223340, 279175, 292060, 365075, 379678, 558350, 730150, 759356, 949195, 1116700, 1460300, 1898390, 3796780, 4745975, 9491950, 18983900]

約数ペア:

[(1, 18983900), (2, 9491950), (4, 4745975), (5, 3796780), (10, 1898390), (13, 1460300), (17, 1116700), (20, 949195), (25, 759356), (26, 730150), (34, 558350), (50, 379678), (52, 365075), (65, 292060), (68, 279175), (85, 223340), (100, 189839), (130, 146030), (170, 111670), (221, 85900), (260, 73015), (325, 58412), (340, 55835), (425, 44668), (442, 42950), (650, 29206), (850, 22334), (859, 22100), (884, 21475), (1105, 17180), (1300, 14603), (1700, 11167), (1718, 11050), (2210, 8590), (3436, 5525), (4295, 4420)]