71420520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{229}}^1$

素因数の和:379

約数の個数: 128

約数和(自身を含む): 226540800

約数和(自身を除く): 155120280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 113, 115, 120, 138, 184, 226, 229, 230, 276, 339, 345, 452, 458, 460, 552, 565, 678, 687, 690, 904, 916, 920, 1130, 1145, 1356, 1374, 1380, 1695, 1832, 2260, 2290, 2599, 2712, 2748, 2760, 3390, 3435, 4520, 4580, 5198, 5267, 5496, 6780, 6870, 7797, 9160, 10396, 10534, 12995, 13560, 13740, 15594, 15801, 20792, 21068, 25877, 25990, 26335, 27480, 31188, 31602, 38985, 42136, 51754, 51980, 52670, 62376, 63204, 77631, 77970, 79005, 103508, 103960, 105340, 126408, 129385, 155262, 155940, 158010, 207016, 210680, 258770, 310524, 311880, 316020, 388155, 517540, 595171, 621048, 632040, 776310, 1035080, 1190342, 1552620, 1785513, 2380684, 2975855, 3105240, 3571026, 4761368, 5951710, 7142052, 8927565, 11903420, 14284104, 17855130, 23806840, 35710260, 71420520]

約数ペア:

[(1, 71420520), (2, 35710260), (3, 23806840), (4, 17855130), (5, 14284104), (6, 11903420), (8, 8927565), (10, 7142052), (12, 5951710), (15, 4761368), (20, 3571026), (23, 3105240), (24, 2975855), (30, 2380684), (40, 1785513), (46, 1552620), (60, 1190342), (69, 1035080), (92, 776310), (113, 632040), (115, 621048), (120, 595171), (138, 517540), (184, 388155), (226, 316020), (229, 311880), (230, 310524), (276, 258770), (339, 210680), (345, 207016), (452, 158010), (458, 155940), (460, 155262), (552, 129385), (565, 126408), (678, 105340), (687, 103960), (690, 103508), (904, 79005), (916, 77970), (920, 77631), (1130, 63204), (1145, 62376), (1356, 52670), (1374, 51980), (1380, 51754), (1695, 42136), (1832, 38985), (2260, 31602), (2290, 31188), (2599, 27480), (2712, 26335), (2748, 25990), (2760, 25877), (3390, 21068), (3435, 20792), (4520, 15801), (4580, 15594), (5198, 13740), (5267, 13560), (5496, 12995), (6780, 10534), (6870, 10396), (7797, 9160)]