142734820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 305263728

約数和(自身を除く): 162528908

約数列:

[1, 2, 4, 5, 10, 20, 113, 137, 226, 274, 452, 461, 548, 565, 685, 922, 1130, 1370, 1844, 2260, 2305, 2740, 4610, 9220, 15481, 30962, 52093, 61924, 63157, 77405, 104186, 126314, 154810, 208372, 252628, 260465, 309620, 315785, 520930, 631570, 1041860, 1263140, 7136741, 14273482, 28546964, 35683705, 71367410, 142734820]

約数ペア:

[(1, 142734820), (2, 71367410), (4, 35683705), (5, 28546964), (10, 14273482), (20, 7136741), (113, 1263140), (137, 1041860), (226, 631570), (274, 520930), (452, 315785), (461, 309620), (548, 260465), (565, 252628), (685, 208372), (922, 154810), (1130, 126314), (1370, 104186), (1844, 77405), (2260, 63157), (2305, 61924), (2740, 52093), (4610, 30962), (9220, 15481)]