20250100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 48717368

約数和(自身を除く): 28467268

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 37, 50, 52, 65, 74, 100, 130, 148, 185, 260, 325, 370, 421, 481, 650, 740, 842, 925, 962, 1300, 1684, 1850, 1924, 2105, 2405, 3700, 4210, 4810, 5473, 8420, 9620, 10525, 10946, 12025, 15577, 21050, 21892, 24050, 27365, 31154, 42100, 48100, 54730, 62308, 77885, 109460, 136825, 155770, 202501, 273650, 311540, 389425, 405002, 547300, 778850, 810004, 1012505, 1557700, 2025010, 4050020, 5062525, 10125050, 20250100]

約数ペア:

[(1, 20250100), (2, 10125050), (4, 5062525), (5, 4050020), (10, 2025010), (13, 1557700), (20, 1012505), (25, 810004), (26, 778850), (37, 547300), (50, 405002), (52, 389425), (65, 311540), (74, 273650), (100, 202501), (130, 155770), (148, 136825), (185, 109460), (260, 77885), (325, 62308), (370, 54730), (421, 48100), (481, 42100), (650, 31154), (740, 27365), (842, 24050), (925, 21892), (962, 21050), (1300, 15577), (1684, 12025), (1850, 10946), (1924, 10525), (2105, 9620), (2405, 8420), (3700, 5473), (4210, 4810)]