30931810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1789}}^1$

素因数の和:1835

約数の個数: 64

約数和(自身を含む): 72172800

約数和(自身を除く): 41240990

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1235, 1330, 1729, 1789, 2470, 3458, 3578, 8645, 8945, 12523, 17290, 17890, 23257, 25046, 33991, 46514, 62615, 67982, 116285, 125230, 162799, 169955, 232570, 237937, 325598, 339910, 441883, 475874, 813995, 883766, 1189685, 1627990, 2209415, 2379370, 3093181, 4418830, 6186362, 15465905, 30931810]

約数ペア:

[(1, 30931810), (2, 15465905), (5, 6186362), (7, 4418830), (10, 3093181), (13, 2379370), (14, 2209415), (19, 1627990), (26, 1189685), (35, 883766), (38, 813995), (65, 475874), (70, 441883), (91, 339910), (95, 325598), (130, 237937), (133, 232570), (182, 169955), (190, 162799), (247, 125230), (266, 116285), (455, 67982), (494, 62615), (665, 46514), (910, 33991), (1235, 25046), (1330, 23257), (1729, 17890), (1789, 17290), (2470, 12523), (3458, 8945), (3578, 8645)]