18020960

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 27701920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 59, 80, 83, 92, 115, 118, 160, 166, 184, 230, 236, 295, 332, 368, 415, 460, 472, 590, 664, 736, 830, 920, 944, 1180, 1328, 1357, 1660, 1840, 1888, 1909, 2360, 2656, 2714, 3320, 3680, 3818, 4720, 4897, 5428, 6640, 6785, 7636, 9440, 9545, 9794, 10856, 13280, 13570, 15272, 19090, 19588, 21712, 24485, 27140, 30544, 38180, 39176, 43424, 48970, 54280, 61088, 76360, 78352, 97940, 108560, 112631, 152720, 156704, 195880, 217120, 225262, 305440, 391760, 450524, 563155, 783520, 901048, 1126310, 1802096, 2252620, 3604192, 4505240, 9010480, 18020960]

約数ペア:

[(1, 18020960), (2, 9010480), (4, 4505240), (5, 3604192), (8, 2252620), (10, 1802096), (16, 1126310), (20, 901048), (23, 783520), (32, 563155), (40, 450524), (46, 391760), (59, 305440), (80, 225262), (83, 217120), (92, 195880), (115, 156704), (118, 152720), (160, 112631), (166, 108560), (184, 97940), (230, 78352), (236, 76360), (295, 61088), (332, 54280), (368, 48970), (415, 43424), (460, 39176), (472, 38180), (590, 30544), (664, 27140), (736, 24485), (830, 21712), (920, 19588), (944, 19090), (1180, 15272), (1328, 13570), (1357, 13280), (1660, 10856), (1840, 9794), (1888, 9545), (1909, 9440), (2360, 7636), (2656, 6785), (2714, 6640), (3320, 5428), (3680, 4897), (3818, 4720)]