84108520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{691}}^1$

素因数の和:898

約数の個数: 64

約数和(自身を含む): 201787200

約数和(自身を除く): 117678680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 179, 340, 358, 680, 691, 716, 895, 1382, 1432, 1790, 2764, 3043, 3455, 3580, 5528, 6086, 6910, 7160, 11747, 12172, 13820, 15215, 23494, 24344, 27640, 30430, 46988, 58735, 60860, 93976, 117470, 121720, 123689, 234940, 247378, 469880, 494756, 618445, 989512, 1236890, 2102713, 2473780, 4205426, 4947560, 8410852, 10513565, 16821704, 21027130, 42054260, 84108520]

約数ペア:

[(1, 84108520), (2, 42054260), (4, 21027130), (5, 16821704), (8, 10513565), (10, 8410852), (17, 4947560), (20, 4205426), (34, 2473780), (40, 2102713), (68, 1236890), (85, 989512), (136, 618445), (170, 494756), (179, 469880), (340, 247378), (358, 234940), (680, 123689), (691, 121720), (716, 117470), (895, 93976), (1382, 60860), (1432, 58735), (1790, 46988), (2764, 30430), (3043, 27640), (3455, 24344), (3580, 23494), (5528, 15215), (6086, 13820), (6910, 12172), (7160, 11747)]