387400020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15121}}^1$

素因数の和:15201

約数の個数: 96

約数和(自身を含む): 1260086016

約数和(自身を除く): 872685996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 854, 915, 1220, 1281, 1708, 1830, 2135, 2562, 3660, 4270, 5124, 6405, 8540, 12810, 15121, 25620, 30242, 45363, 60484, 75605, 90726, 105847, 151210, 181452, 211694, 226815, 302420, 317541, 423388, 453630, 529235, 635082, 907260, 922381, 1058470, 1270164, 1587705, 1844762, 2116940, 2767143, 3175410, 3689524, 4611905, 5534286, 6350820, 6456667, 9223810, 11068572, 12913334, 13835715, 18447620, 19370001, 25826668, 27671430, 32283335, 38740002, 55342860, 64566670, 77480004, 96850005, 129133340, 193700010, 387400020]

約数ペア:

[(1, 387400020), (2, 193700010), (3, 129133340), (4, 96850005), (5, 77480004), (6, 64566670), (7, 55342860), (10, 38740002), (12, 32283335), (14, 27671430), (15, 25826668), (20, 19370001), (21, 18447620), (28, 13835715), (30, 12913334), (35, 11068572), (42, 9223810), (60, 6456667), (61, 6350820), (70, 5534286), (84, 4611905), (105, 3689524), (122, 3175410), (140, 2767143), (183, 2116940), (210, 1844762), (244, 1587705), (305, 1270164), (366, 1058470), (420, 922381), (427, 907260), (610, 635082), (732, 529235), (854, 453630), (915, 423388), (1220, 317541), (1281, 302420), (1708, 226815), (1830, 211694), (2135, 181452), (2562, 151210), (3660, 105847), (4270, 90726), (5124, 75605), (6405, 60484), (8540, 45363), (12810, 30242), (15121, 25620)]