27775280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1571}}^1$

素因数の和:1614

約数の個数: 80

約数和(自身を含む): 73682784

約数和(自身を除く): 45907504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1571, 1768, 2210, 3142, 3536, 4420, 6284, 7855, 8840, 12568, 15710, 17680, 20423, 25136, 26707, 31420, 40846, 53414, 62840, 81692, 102115, 106828, 125680, 133535, 163384, 204230, 213656, 267070, 326768, 347191, 408460, 427312, 534140, 694382, 816920, 1068280, 1388764, 1633840, 1735955, 2136560, 2777528, 3471910, 5555056, 6943820, 13887640, 27775280]

約数ペア:

[(1, 27775280), (2, 13887640), (4, 6943820), (5, 5555056), (8, 3471910), (10, 2777528), (13, 2136560), (16, 1735955), (17, 1633840), (20, 1388764), (26, 1068280), (34, 816920), (40, 694382), (52, 534140), (65, 427312), (68, 408460), (80, 347191), (85, 326768), (104, 267070), (130, 213656), (136, 204230), (170, 163384), (208, 133535), (221, 125680), (260, 106828), (272, 102115), (340, 81692), (442, 62840), (520, 53414), (680, 40846), (884, 31420), (1040, 26707), (1105, 25136), (1360, 20423), (1571, 17680), (1768, 15710), (2210, 12568), (3142, 8840), (3536, 7855), (4420, 6284)]