1338740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 3198720

約数和(自身を除く): 1859980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 271, 380, 494, 542, 988, 1084, 1235, 1355, 2470, 2710, 3523, 4940, 5149, 5420, 7046, 10298, 14092, 17615, 20596, 25745, 35230, 51490, 66937, 70460, 102980, 133874, 267748, 334685, 669370, 1338740]

約数ペア:

[(1, 1338740), (2, 669370), (4, 334685), (5, 267748), (10, 133874), (13, 102980), (19, 70460), (20, 66937), (26, 51490), (38, 35230), (52, 25745), (65, 20596), (76, 17615), (95, 14092), (130, 10298), (190, 7046), (247, 5420), (260, 5149), (271, 4940), (380, 3523), (494, 2710), (542, 2470), (988, 1355), (1084, 1235)]