85721920

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:672

約数の個数: 112

約数和(自身を含む): 224576640

約数和(自身を除く): 138854720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 152, 160, 184, 190, 230, 304, 320, 368, 380, 437, 460, 608, 613, 736, 760, 874, 920, 1216, 1226, 1472, 1520, 1748, 1840, 2185, 2452, 3040, 3065, 3496, 3680, 4370, 4904, 6080, 6130, 6992, 7360, 8740, 9808, 11647, 12260, 13984, 14099, 17480, 19616, 23294, 24520, 27968, 28198, 34960, 39232, 46588, 49040, 56396, 58235, 69920, 70495, 93176, 98080, 112792, 116470, 139840, 140990, 186352, 196160, 225584, 232940, 267881, 281980, 372704, 451168, 465880, 535762, 563960, 745408, 902336, 931760, 1071524, 1127920, 1339405, 1863520, 2143048, 2255840, 2678810, 3727040, 4286096, 4511680, 5357620, 8572192, 10715240, 17144384, 21430480, 42860960, 85721920]

約数ペア:

[(1, 85721920), (2, 42860960), (4, 21430480), (5, 17144384), (8, 10715240), (10, 8572192), (16, 5357620), (19, 4511680), (20, 4286096), (23, 3727040), (32, 2678810), (38, 2255840), (40, 2143048), (46, 1863520), (64, 1339405), (76, 1127920), (80, 1071524), (92, 931760), (95, 902336), (115, 745408), (152, 563960), (160, 535762), (184, 465880), (190, 451168), (230, 372704), (304, 281980), (320, 267881), (368, 232940), (380, 225584), (437, 196160), (460, 186352), (608, 140990), (613, 139840), (736, 116470), (760, 112792), (874, 98080), (920, 93176), (1216, 70495), (1226, 69920), (1472, 58235), (1520, 56396), (1748, 49040), (1840, 46588), (2185, 39232), (2452, 34960), (3040, 28198), (3065, 27968), (3496, 24520), (3680, 23294), (4370, 19616), (4904, 17480), (6080, 14099), (6130, 13984), (6992, 12260), (7360, 11647), (8740, 9808)]