123656520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2557}}^1$

素因数の和:2615

約数の個数: 128

約数和(自身を含む): 412554240

約数和(自身を除く): 288897720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1860, 2015, 2418, 2557, 3224, 3720, 4030, 4836, 5114, 6045, 7671, 8060, 9672, 10228, 12090, 12785, 15342, 16120, 20456, 24180, 25570, 30684, 33241, 38355, 48360, 51140, 61368, 66482, 76710, 79267, 99723, 102280, 132964, 153420, 158534, 166205, 199446, 237801, 265928, 306840, 317068, 332410, 396335, 398892, 475602, 498615, 634136, 664820, 792670, 797784, 951204, 997230, 1030471, 1189005, 1329640, 1585340, 1902408, 1994460, 2060942, 2378010, 3091413, 3170680, 3988920, 4121884, 4756020, 5152355, 6182826, 8243768, 9512040, 10304710, 12365652, 15457065, 20609420, 24731304, 30914130, 41218840, 61828260, 123656520]

約数ペア:

[(1, 123656520), (2, 61828260), (3, 41218840), (4, 30914130), (5, 24731304), (6, 20609420), (8, 15457065), (10, 12365652), (12, 10304710), (13, 9512040), (15, 8243768), (20, 6182826), (24, 5152355), (26, 4756020), (30, 4121884), (31, 3988920), (39, 3170680), (40, 3091413), (52, 2378010), (60, 2060942), (62, 1994460), (65, 1902408), (78, 1585340), (93, 1329640), (104, 1189005), (120, 1030471), (124, 997230), (130, 951204), (155, 797784), (156, 792670), (186, 664820), (195, 634136), (248, 498615), (260, 475602), (310, 398892), (312, 396335), (372, 332410), (390, 317068), (403, 306840), (465, 265928), (520, 237801), (620, 199446), (744, 166205), (780, 158534), (806, 153420), (930, 132964), (1209, 102280), (1240, 99723), (1560, 79267), (1612, 76710), (1860, 66482), (2015, 61368), (2418, 51140), (2557, 48360), (3224, 38355), (3720, 33241), (4030, 30684), (4836, 25570), (5114, 24180), (6045, 20456), (7671, 16120), (8060, 15342), (9672, 12785), (10228, 12090)]