642390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:66

約数の個数: 96

約数和(自身を含む): 1969920

約数和(自身を除く): 1327530

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 23, 30, 35, 38, 42, 46, 49, 57, 69, 70, 95, 98, 105, 114, 115, 133, 138, 147, 161, 190, 210, 230, 245, 266, 285, 294, 322, 345, 399, 437, 483, 490, 570, 665, 690, 735, 798, 805, 874, 931, 966, 1127, 1311, 1330, 1470, 1610, 1862, 1995, 2185, 2254, 2415, 2622, 2793, 3059, 3381, 3990, 4370, 4655, 4830, 5586, 5635, 6118, 6555, 6762, 9177, 9310, 11270, 13110, 13965, 15295, 16905, 18354, 21413, 27930, 30590, 33810, 42826, 45885, 64239, 91770, 107065, 128478, 214130, 321195, 642390]

約数ペア:

[(1, 642390), (2, 321195), (3, 214130), (5, 128478), (6, 107065), (7, 91770), (10, 64239), (14, 45885), (15, 42826), (19, 33810), (21, 30590), (23, 27930), (30, 21413), (35, 18354), (38, 16905), (42, 15295), (46, 13965), (49, 13110), (57, 11270), (69, 9310), (70, 9177), (95, 6762), (98, 6555), (105, 6118), (114, 5635), (115, 5586), (133, 4830), (138, 4655), (147, 4370), (161, 3990), (190, 3381), (210, 3059), (230, 2793), (245, 2622), (266, 2415), (285, 2254), (294, 2185), (322, 1995), (345, 1862), (399, 1610), (437, 1470), (483, 1330), (490, 1311), (570, 1127), (665, 966), (690, 931), (735, 874), (798, 805)]