20435640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8963}}^1$

素因数の和:8996

約数の個数: 64

約数和(自身を含む): 64540800

約数和(自身を除く): 44105160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 8963, 17926, 26889, 35852, 44815, 53778, 71704, 89630, 107556, 134445, 170297, 179260, 215112, 268890, 340594, 358520, 510891, 537780, 681188, 851485, 1021782, 1075560, 1362376, 1702970, 2043564, 2554455, 3405940, 4087128, 5108910, 6811880, 10217820, 20435640]

約数ペア:

[(1, 20435640), (2, 10217820), (3, 6811880), (4, 5108910), (5, 4087128), (6, 3405940), (8, 2554455), (10, 2043564), (12, 1702970), (15, 1362376), (19, 1075560), (20, 1021782), (24, 851485), (30, 681188), (38, 537780), (40, 510891), (57, 358520), (60, 340594), (76, 268890), (95, 215112), (114, 179260), (120, 170297), (152, 134445), (190, 107556), (228, 89630), (285, 71704), (380, 53778), (456, 44815), (570, 35852), (760, 26889), (1140, 17926), (2280, 8963)]