15256920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 53706240

約数和(自身を除く): 38449320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 82, 84, 105, 120, 123, 140, 164, 168, 205, 210, 246, 280, 287, 328, 410, 420, 443, 492, 574, 615, 820, 840, 861, 886, 984, 1148, 1230, 1329, 1435, 1640, 1722, 1772, 2215, 2296, 2460, 2658, 2870, 3101, 3444, 3544, 4305, 4430, 4920, 5316, 5740, 6202, 6645, 6888, 8610, 8860, 9303, 10632, 11480, 12404, 13290, 15505, 17220, 17720, 18163, 18606, 24808, 26580, 31010, 34440, 36326, 37212, 46515, 53160, 54489, 62020, 72652, 74424, 90815, 93030, 108978, 124040, 127141, 145304, 181630, 186060, 217956, 254282, 272445, 363260, 372120, 381423, 435912, 508564, 544890, 635705, 726520, 762846, 1017128, 1089780, 1271410, 1525692, 1907115, 2179560, 2542820, 3051384, 3814230, 5085640, 7628460, 15256920]

約数ペア:

[(1, 15256920), (2, 7628460), (3, 5085640), (4, 3814230), (5, 3051384), (6, 2542820), (7, 2179560), (8, 1907115), (10, 1525692), (12, 1271410), (14, 1089780), (15, 1017128), (20, 762846), (21, 726520), (24, 635705), (28, 544890), (30, 508564), (35, 435912), (40, 381423), (41, 372120), (42, 363260), (56, 272445), (60, 254282), (70, 217956), (82, 186060), (84, 181630), (105, 145304), (120, 127141), (123, 124040), (140, 108978), (164, 93030), (168, 90815), (205, 74424), (210, 72652), (246, 62020), (280, 54489), (287, 53160), (328, 46515), (410, 37212), (420, 36326), (443, 34440), (492, 31010), (574, 26580), (615, 24808), (820, 18606), (840, 18163), (861, 17720), (886, 17220), (984, 15505), (1148, 13290), (1230, 12404), (1329, 11480), (1435, 10632), (1640, 9303), (1722, 8860), (1772, 8610), (2215, 6888), (2296, 6645), (2460, 6202), (2658, 5740), (2870, 5316), (3101, 4920), (3444, 4430), (3544, 4305)]