208995280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11821}}^1$

素因数の和:11864

約数の個数: 80

約数和(自身を含む): 554120784

約数和(自身を除く): 345125504

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, 1768, 2210, 3536, 4420, 8840, 11821, 17680, 23642, 47284, 59105, 94568, 118210, 153673, 189136, 200957, 236420, 307346, 401914, 472840, 614692, 768365, 803828, 945680, 1004785, 1229384, 1536730, 1607656, 2009570, 2458768, 2612441, 3073460, 3215312, 4019140, 5224882, 6146920, 8038280, 10449764, 12293840, 13062205, 16076560, 20899528, 26124410, 41799056, 52248820, 104497640, 208995280]

約数ペア:

[(1, 208995280), (2, 104497640), (4, 52248820), (5, 41799056), (8, 26124410), (10, 20899528), (13, 16076560), (16, 13062205), (17, 12293840), (20, 10449764), (26, 8038280), (34, 6146920), (40, 5224882), (52, 4019140), (65, 3215312), (68, 3073460), (80, 2612441), (85, 2458768), (104, 2009570), (130, 1607656), (136, 1536730), (170, 1229384), (208, 1004785), (221, 945680), (260, 803828), (272, 768365), (340, 614692), (442, 472840), (520, 401914), (680, 307346), (884, 236420), (1040, 200957), (1105, 189136), (1360, 153673), (1768, 118210), (2210, 94568), (3536, 59105), (4420, 47284), (8840, 23642), (11821, 17680)]