81339960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2267}}^1$

素因数の和:2317

約数の個数: 128

約数和(自身を含む): 274337280

約数和(自身を除く): 192997320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 897, 920, 1196, 1380, 1495, 1560, 1794, 2267, 2392, 2760, 2990, 3588, 4485, 4534, 5980, 6801, 7176, 8970, 9068, 11335, 11960, 13602, 17940, 18136, 22670, 27204, 29471, 34005, 35880, 45340, 52141, 54408, 58942, 68010, 88413, 90680, 104282, 117884, 136020, 147355, 156423, 176826, 208564, 235768, 260705, 272040, 294710, 312846, 353652, 417128, 442065, 521410, 589420, 625692, 677833, 707304, 782115, 884130, 1042820, 1178840, 1251384, 1355666, 1564230, 1768260, 2033499, 2085640, 2711332, 3128460, 3389165, 3536520, 4066998, 5422664, 6256920, 6778330, 8133996, 10167495, 13556660, 16267992, 20334990, 27113320, 40669980, 81339960]

約数ペア:

[(1, 81339960), (2, 40669980), (3, 27113320), (4, 20334990), (5, 16267992), (6, 13556660), (8, 10167495), (10, 8133996), (12, 6778330), (13, 6256920), (15, 5422664), (20, 4066998), (23, 3536520), (24, 3389165), (26, 3128460), (30, 2711332), (39, 2085640), (40, 2033499), (46, 1768260), (52, 1564230), (60, 1355666), (65, 1251384), (69, 1178840), (78, 1042820), (92, 884130), (104, 782115), (115, 707304), (120, 677833), (130, 625692), (138, 589420), (156, 521410), (184, 442065), (195, 417128), (230, 353652), (260, 312846), (276, 294710), (299, 272040), (312, 260705), (345, 235768), (390, 208564), (460, 176826), (520, 156423), (552, 147355), (598, 136020), (690, 117884), (780, 104282), (897, 90680), (920, 88413), (1196, 68010), (1380, 58942), (1495, 54408), (1560, 52141), (1794, 45340), (2267, 35880), (2392, 34005), (2760, 29471), (2990, 27204), (3588, 22670), (4485, 18136), (4534, 17940), (5980, 13602), (6801, 11960), (7176, 11335), (8970, 9068)]