649104040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:723

約数の個数: 128

約数和(自身を含む): 1650539520

約数和(自身を除く): 1001435480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 67, 104, 124, 130, 134, 155, 248, 260, 268, 310, 335, 403, 520, 536, 601, 620, 670, 806, 871, 1202, 1240, 1340, 1612, 1742, 2015, 2077, 2404, 2680, 3005, 3224, 3484, 4030, 4154, 4355, 4808, 6010, 6968, 7813, 8060, 8308, 8710, 10385, 12020, 15626, 16120, 16616, 17420, 18631, 20770, 24040, 27001, 31252, 34840, 37262, 39065, 40267, 41540, 54002, 62504, 74524, 78130, 80534, 83080, 93155, 108004, 135005, 149048, 156260, 161068, 186310, 201335, 216008, 242203, 270010, 312520, 322136, 372620, 402670, 484406, 523471, 540020, 745240, 805340, 968812, 1046942, 1080040, 1211015, 1248277, 1610680, 1937624, 2093884, 2422030, 2496554, 2617355, 4187768, 4844060, 4993108, 5234710, 6241385, 9688120, 9986216, 10469420, 12482770, 16227601, 20938840, 24965540, 32455202, 49931080, 64910404, 81138005, 129820808, 162276010, 324552020, 649104040]

約数ペア:

[(1, 649104040), (2, 324552020), (4, 162276010), (5, 129820808), (8, 81138005), (10, 64910404), (13, 49931080), (20, 32455202), (26, 24965540), (31, 20938840), (40, 16227601), (52, 12482770), (62, 10469420), (65, 9986216), (67, 9688120), (104, 6241385), (124, 5234710), (130, 4993108), (134, 4844060), (155, 4187768), (248, 2617355), (260, 2496554), (268, 2422030), (310, 2093884), (335, 1937624), (403, 1610680), (520, 1248277), (536, 1211015), (601, 1080040), (620, 1046942), (670, 968812), (806, 805340), (871, 745240), (1202, 540020), (1240, 523471), (1340, 484406), (1612, 402670), (1742, 372620), (2015, 322136), (2077, 312520), (2404, 270010), (2680, 242203), (3005, 216008), (3224, 201335), (3484, 186310), (4030, 161068), (4154, 156260), (4355, 149048), (4808, 135005), (6010, 108004), (6968, 93155), (7813, 83080), (8060, 80534), (8308, 78130), (8710, 74524), (10385, 62504), (12020, 54002), (15626, 41540), (16120, 40267), (16616, 39065), (17420, 37262), (18631, 34840), (20770, 31252), (24040, 27001)]