20780970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5821}}^1$

素因数の和:5855

約数の個数: 64

約数和(自身を含む): 60362496

約数和(自身を除く): 39581526

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 30, 34, 35, 42, 51, 70, 85, 102, 105, 119, 170, 210, 238, 255, 357, 510, 595, 714, 1190, 1785, 3570, 5821, 11642, 17463, 29105, 34926, 40747, 58210, 81494, 87315, 98957, 122241, 174630, 197914, 203735, 244482, 296871, 407470, 494785, 593742, 611205, 692699, 989570, 1222410, 1385398, 1484355, 2078097, 2968710, 3463495, 4156194, 6926990, 10390485, 20780970]

約数ペア:

[(1, 20780970), (2, 10390485), (3, 6926990), (5, 4156194), (6, 3463495), (7, 2968710), (10, 2078097), (14, 1484355), (15, 1385398), (17, 1222410), (21, 989570), (30, 692699), (34, 611205), (35, 593742), (42, 494785), (51, 407470), (70, 296871), (85, 244482), (102, 203735), (105, 197914), (119, 174630), (170, 122241), (210, 98957), (238, 87315), (255, 81494), (357, 58210), (510, 40747), (595, 34926), (714, 29105), (1190, 17463), (1785, 11642), (3570, 5821)]