428320100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19381}}^1$

素因数の和:19425

約数の個数: 72

約数和(自身を含む): 1059885288

約数和(自身を除く): 631565188

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, 884, 1105, 1300, 1700, 2210, 4420, 5525, 11050, 19381, 22100, 38762, 77524, 96905, 193810, 251953, 329477, 387620, 484525, 503906, 658954, 969050, 1007812, 1259765, 1317908, 1647385, 1938100, 2519530, 3294770, 4283201, 5039060, 6298825, 6589540, 8236925, 8566402, 12597650, 16473850, 17132804, 21416005, 25195300, 32947700, 42832010, 85664020, 107080025, 214160050, 428320100]

約数ペア:

[(1, 428320100), (2, 214160050), (4, 107080025), (5, 85664020), (10, 42832010), (13, 32947700), (17, 25195300), (20, 21416005), (25, 17132804), (26, 16473850), (34, 12597650), (50, 8566402), (52, 8236925), (65, 6589540), (68, 6298825), (85, 5039060), (100, 4283201), (130, 3294770), (170, 2519530), (221, 1938100), (260, 1647385), (325, 1317908), (340, 1259765), (425, 1007812), (442, 969050), (650, 658954), (850, 503906), (884, 484525), (1105, 387620), (1300, 329477), (1700, 251953), (2210, 193810), (4420, 96905), (5525, 77524), (11050, 38762), (19381, 22100)]