20302560

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:657

約数の個数: 144

約数和(自身を含む): 72412704

約数和(自身を除く): 52110144

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 207, 230, 240, 276, 288, 345, 360, 368, 414, 460, 480, 552, 613, 690, 720, 736, 828, 920, 1035, 1104, 1226, 1380, 1440, 1656, 1839, 1840, 2070, 2208, 2452, 2760, 3065, 3312, 3678, 3680, 4140, 4904, 5517, 5520, 6130, 6624, 7356, 8280, 9195, 9808, 11034, 11040, 12260, 14099, 14712, 16560, 18390, 19616, 22068, 24520, 27585, 28198, 29424, 33120, 36780, 42297, 44136, 49040, 55170, 56396, 58848, 70495, 73560, 84594, 88272, 98080, 110340, 112792, 126891, 140990, 147120, 169188, 176544, 211485, 220680, 225584, 253782, 281980, 294240, 338376, 422970, 441360, 451168, 507564, 563960, 634455, 676752, 845940, 882720, 1015128, 1127920, 1268910, 1353504, 1691880, 2030256, 2255840, 2537820, 3383760, 4060512, 5075640, 6767520, 10151280, 20302560]

約数ペア:

[(1, 20302560), (2, 10151280), (3, 6767520), (4, 5075640), (5, 4060512), (6, 3383760), (8, 2537820), (9, 2255840), (10, 2030256), (12, 1691880), (15, 1353504), (16, 1268910), (18, 1127920), (20, 1015128), (23, 882720), (24, 845940), (30, 676752), (32, 634455), (36, 563960), (40, 507564), (45, 451168), (46, 441360), (48, 422970), (60, 338376), (69, 294240), (72, 281980), (80, 253782), (90, 225584), (92, 220680), (96, 211485), (115, 176544), (120, 169188), (138, 147120), (144, 140990), (160, 126891), (180, 112792), (184, 110340), (207, 98080), (230, 88272), (240, 84594), (276, 73560), (288, 70495), (345, 58848), (360, 56396), (368, 55170), (414, 49040), (460, 44136), (480, 42297), (552, 36780), (613, 33120), (690, 29424), (720, 28198), (736, 27585), (828, 24520), (920, 22068), (1035, 19616), (1104, 18390), (1226, 16560), (1380, 14712), (1440, 14099), (1656, 12260), (1839, 11040), (1840, 11034), (2070, 9808), (2208, 9195), (2452, 8280), (2760, 7356), (3065, 6624), (3312, 6130), (3678, 5520), (3680, 5517), (4140, 4904)]