40640080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1699}}^1$

素因数の和:1748

約数の個数: 80

約数和(自身を含む): 106243200

約数和(自身を除く): 65603120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1699, 1840, 2392, 2990, 3398, 4784, 5980, 6796, 8495, 11960, 13592, 16990, 22087, 23920, 27184, 33980, 39077, 44174, 67960, 78154, 88348, 110435, 135920, 156308, 176696, 195385, 220870, 312616, 353392, 390770, 441740, 508001, 625232, 781540, 883480, 1016002, 1563080, 1766960, 2032004, 2540005, 3126160, 4064008, 5080010, 8128016, 10160020, 20320040, 40640080]

約数ペア:

[(1, 40640080), (2, 20320040), (4, 10160020), (5, 8128016), (8, 5080010), (10, 4064008), (13, 3126160), (16, 2540005), (20, 2032004), (23, 1766960), (26, 1563080), (40, 1016002), (46, 883480), (52, 781540), (65, 625232), (80, 508001), (92, 441740), (104, 390770), (115, 353392), (130, 312616), (184, 220870), (208, 195385), (230, 176696), (260, 156308), (299, 135920), (368, 110435), (460, 88348), (520, 78154), (598, 67960), (920, 44174), (1040, 39077), (1196, 33980), (1495, 27184), (1699, 23920), (1840, 22087), (2392, 16990), (2990, 13592), (3398, 11960), (4784, 8495), (5980, 6796)]