265521280

素因数分解:

$2^7\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3167}}^1$

素因数の和:3317

約数の個数: 64

約数和(自身を含む): 639809280

約数和(自身を除く): 374288000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 262, 320, 524, 640, 655, 1048, 1310, 2096, 2620, 3167, 4192, 5240, 6334, 8384, 10480, 12668, 15835, 16768, 20960, 25336, 31670, 41920, 50672, 63340, 83840, 101344, 126680, 202688, 253360, 405376, 414877, 506720, 829754, 1013440, 1659508, 2026880, 2074385, 3319016, 4148770, 6638032, 8297540, 13276064, 16595080, 26552128, 33190160, 53104256, 66380320, 132760640, 265521280]

約数ペア:

[(1, 265521280), (2, 132760640), (4, 66380320), (5, 53104256), (8, 33190160), (10, 26552128), (16, 16595080), (20, 13276064), (32, 8297540), (40, 6638032), (64, 4148770), (80, 3319016), (128, 2074385), (131, 2026880), (160, 1659508), (262, 1013440), (320, 829754), (524, 506720), (640, 414877), (655, 405376), (1048, 253360), (1310, 202688), (2096, 126680), (2620, 101344), (3167, 83840), (4192, 63340), (5240, 50672), (6334, 41920), (8384, 31670), (10480, 25336), (12668, 20960), (15835, 16768)]