20654150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^2$

素因数の和:134

約数の個数: 72

約数和(自身を含む): 45338616

約数和(自身を除く): 24684466

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 47, 50, 55, 85, 94, 110, 170, 187, 235, 275, 374, 425, 470, 517, 550, 799, 850, 935, 1034, 1175, 1598, 1870, 2209, 2350, 2585, 3995, 4418, 4675, 5170, 7990, 8789, 9350, 11045, 12925, 17578, 19975, 22090, 24299, 25850, 37553, 39950, 43945, 48598, 55225, 75106, 87890, 110450, 121495, 187765, 219725, 242990, 375530, 413083, 439450, 607475, 826166, 938825, 1214950, 1877650, 2065415, 4130830, 10327075, 20654150]

約数ペア:

[(1, 20654150), (2, 10327075), (5, 4130830), (10, 2065415), (11, 1877650), (17, 1214950), (22, 938825), (25, 826166), (34, 607475), (47, 439450), (50, 413083), (55, 375530), (85, 242990), (94, 219725), (110, 187765), (170, 121495), (187, 110450), (235, 87890), (275, 75106), (374, 55225), (425, 48598), (470, 43945), (517, 39950), (550, 37553), (799, 25850), (850, 24299), (935, 22090), (1034, 19975), (1175, 17578), (1598, 12925), (1870, 11045), (2209, 9350), (2350, 8789), (2585, 7990), (3995, 5170), (4418, 4675)]