31702020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 106178688

約数和(自身を除く): 74476668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 49, 60, 70, 82, 84, 98, 105, 123, 140, 147, 164, 196, 205, 210, 245, 246, 263, 287, 294, 410, 420, 490, 492, 526, 574, 588, 615, 735, 789, 820, 861, 980, 1052, 1148, 1230, 1315, 1435, 1470, 1578, 1722, 1841, 2009, 2460, 2630, 2870, 2940, 3156, 3444, 3682, 3945, 4018, 4305, 5260, 5523, 5740, 6027, 7364, 7890, 8036, 8610, 9205, 10045, 10783, 11046, 12054, 12887, 15780, 17220, 18410, 20090, 21566, 22092, 24108, 25774, 27615, 30135, 32349, 36820, 38661, 40180, 43132, 51548, 53915, 55230, 60270, 64435, 64698, 75481, 77322, 107830, 110460, 120540, 128870, 129396, 150962, 154644, 161745, 193305, 215660, 226443, 257740, 301924, 323490, 377405, 386610, 452886, 528367, 646980, 754810, 773220, 905772, 1056734, 1132215, 1509620, 1585101, 2113468, 2264430, 2641835, 3170202, 4528860, 5283670, 6340404, 7925505, 10567340, 15851010, 31702020]

約数ペア:

[(1, 31702020), (2, 15851010), (3, 10567340), (4, 7925505), (5, 6340404), (6, 5283670), (7, 4528860), (10, 3170202), (12, 2641835), (14, 2264430), (15, 2113468), (20, 1585101), (21, 1509620), (28, 1132215), (30, 1056734), (35, 905772), (41, 773220), (42, 754810), (49, 646980), (60, 528367), (70, 452886), (82, 386610), (84, 377405), (98, 323490), (105, 301924), (123, 257740), (140, 226443), (147, 215660), (164, 193305), (196, 161745), (205, 154644), (210, 150962), (245, 129396), (246, 128870), (263, 120540), (287, 110460), (294, 107830), (410, 77322), (420, 75481), (490, 64698), (492, 64435), (526, 60270), (574, 55230), (588, 53915), (615, 51548), (735, 43132), (789, 40180), (820, 38661), (861, 36820), (980, 32349), (1052, 30135), (1148, 27615), (1230, 25774), (1315, 24108), (1435, 22092), (1470, 21566), (1578, 20090), (1722, 18410), (1841, 17220), (2009, 15780), (2460, 12887), (2630, 12054), (2870, 11046), (2940, 10783), (3156, 10045), (3444, 9205), (3682, 8610), (3945, 8036), (4018, 7890), (4305, 7364), (5260, 6027), (5523, 5740)]