87716580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{457}}^2$

素因数の和:933

約数の個数: 72

約数和(自身を含む): 281308608

約数和(自身を除く): 193592028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 457, 914, 1371, 1828, 2285, 2742, 3199, 4570, 5484, 6398, 6855, 9140, 9597, 12796, 13710, 15995, 19194, 27420, 31990, 38388, 47985, 63980, 95970, 191940, 208849, 417698, 626547, 835396, 1044245, 1253094, 1461943, 2088490, 2506188, 2923886, 3132735, 4176980, 4385829, 5847772, 6265470, 7309715, 8771658, 12530940, 14619430, 17543316, 21929145, 29238860, 43858290, 87716580]

約数ペア:

[(1, 87716580), (2, 43858290), (3, 29238860), (4, 21929145), (5, 17543316), (6, 14619430), (7, 12530940), (10, 8771658), (12, 7309715), (14, 6265470), (15, 5847772), (20, 4385829), (21, 4176980), (28, 3132735), (30, 2923886), (35, 2506188), (42, 2088490), (60, 1461943), (70, 1253094), (84, 1044245), (105, 835396), (140, 626547), (210, 417698), (420, 208849), (457, 191940), (914, 95970), (1371, 63980), (1828, 47985), (2285, 38388), (2742, 31990), (3199, 27420), (4570, 19194), (5484, 15995), (6398, 13710), (6855, 12796), (9140, 9597)]