280894720

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7079}}^1$

素因数の和:7131

約数の個数: 72

約数和(自身を含む): 694632960

約数和(自身を除く): 413738240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7079, 7936, 9920, 14158, 19840, 28316, 35395, 39680, 56632, 70790, 113264, 141580, 219449, 226528, 283160, 438898, 453056, 566320, 877796, 906112, 1097245, 1132640, 1755592, 1812224, 2194490, 2265280, 3511184, 4388980, 4530560, 7022368, 8777960, 9061120, 14044736, 17555920, 28089472, 35111840, 56178944, 70223680, 140447360, 280894720]

約数ペア:

[(1, 280894720), (2, 140447360), (4, 70223680), (5, 56178944), (8, 35111840), (10, 28089472), (16, 17555920), (20, 14044736), (31, 9061120), (32, 8777960), (40, 7022368), (62, 4530560), (64, 4388980), (80, 3511184), (124, 2265280), (128, 2194490), (155, 1812224), (160, 1755592), (248, 1132640), (256, 1097245), (310, 906112), (320, 877796), (496, 566320), (620, 453056), (640, 438898), (992, 283160), (1240, 226528), (1280, 219449), (1984, 141580), (2480, 113264), (3968, 70790), (4960, 56632), (7079, 39680), (7936, 35395), (9920, 28316), (14158, 19840)]