28956700

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 65870784

約数和(自身を除く): 36914084

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 61, 94, 100, 101, 122, 188, 202, 235, 244, 305, 404, 470, 505, 610, 940, 1010, 1175, 1220, 1525, 2020, 2350, 2525, 2867, 3050, 4700, 4747, 5050, 5734, 6100, 6161, 9494, 10100, 11468, 12322, 14335, 18988, 23735, 24644, 28670, 30805, 47470, 57340, 61610, 71675, 94940, 118675, 123220, 143350, 154025, 237350, 286700, 289567, 308050, 474700, 579134, 616100, 1158268, 1447835, 2895670, 5791340, 7239175, 14478350, 28956700]

約数ペア:

[(1, 28956700), (2, 14478350), (4, 7239175), (5, 5791340), (10, 2895670), (20, 1447835), (25, 1158268), (47, 616100), (50, 579134), (61, 474700), (94, 308050), (100, 289567), (101, 286700), (122, 237350), (188, 154025), (202, 143350), (235, 123220), (244, 118675), (305, 94940), (404, 71675), (470, 61610), (505, 57340), (610, 47470), (940, 30805), (1010, 28670), (1175, 24644), (1220, 23735), (1525, 18988), (2020, 14335), (2350, 12322), (2525, 11468), (2867, 10100), (3050, 9494), (4700, 6161), (4747, 6100), (5050, 5734)]