87870640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7681}}^1$

素因数の和:7718

約数の個数: 80

約数和(自身を含む): 240047136

約数和(自身を除く): 152176496

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2860, 5720, 7681, 11440, 15362, 30724, 38405, 61448, 76810, 84491, 99853, 122896, 153620, 168982, 199706, 307240, 337964, 399412, 422455, 499265, 614480, 675928, 798824, 844910, 998530, 1098383, 1351856, 1597648, 1689820, 1997060, 2196766, 3379640, 3994120, 4393532, 5491915, 6759280, 7988240, 8787064, 10983830, 17574128, 21967660, 43935320, 87870640]

約数ペア:

[(1, 87870640), (2, 43935320), (4, 21967660), (5, 17574128), (8, 10983830), (10, 8787064), (11, 7988240), (13, 6759280), (16, 5491915), (20, 4393532), (22, 3994120), (26, 3379640), (40, 2196766), (44, 1997060), (52, 1689820), (55, 1597648), (65, 1351856), (80, 1098383), (88, 998530), (104, 844910), (110, 798824), (130, 675928), (143, 614480), (176, 499265), (208, 422455), (220, 399412), (260, 337964), (286, 307240), (440, 199706), (520, 168982), (572, 153620), (715, 122896), (880, 99853), (1040, 84491), (1144, 76810), (1430, 61448), (2288, 38405), (2860, 30724), (5720, 15362), (7681, 11440)]