18171580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 46448640

約数和(自身を除く): 28277060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 53, 62, 70, 79, 106, 124, 140, 155, 158, 212, 217, 265, 310, 316, 371, 395, 434, 530, 553, 620, 742, 790, 868, 1060, 1085, 1106, 1484, 1580, 1643, 1855, 2170, 2212, 2449, 2765, 3286, 3710, 4187, 4340, 4898, 5530, 6572, 7420, 8215, 8374, 9796, 11060, 11501, 12245, 16430, 16748, 17143, 20935, 23002, 24490, 29309, 32860, 34286, 41870, 46004, 48980, 57505, 58618, 68572, 83740, 85715, 115010, 117236, 129797, 146545, 171430, 230020, 259594, 293090, 342860, 519188, 586180, 648985, 908579, 1297970, 1817158, 2595940, 3634316, 4542895, 9085790, 18171580]

約数ペア:

[(1, 18171580), (2, 9085790), (4, 4542895), (5, 3634316), (7, 2595940), (10, 1817158), (14, 1297970), (20, 908579), (28, 648985), (31, 586180), (35, 519188), (53, 342860), (62, 293090), (70, 259594), (79, 230020), (106, 171430), (124, 146545), (140, 129797), (155, 117236), (158, 115010), (212, 85715), (217, 83740), (265, 68572), (310, 58618), (316, 57505), (371, 48980), (395, 46004), (434, 41870), (530, 34286), (553, 32860), (620, 29309), (742, 24490), (790, 23002), (868, 20935), (1060, 17143), (1085, 16748), (1106, 16430), (1484, 12245), (1580, 11501), (1643, 11060), (1855, 9796), (2170, 8374), (2212, 8215), (2449, 7420), (2765, 6572), (3286, 5530), (3710, 4898), (4187, 4340)]