28679740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1063}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 64350720

約数和(自身を除く): 35670980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1063, 1349, 1420, 2126, 2698, 4252, 5315, 5396, 6745, 10630, 13490, 20197, 21260, 26980, 40394, 75473, 80788, 100985, 150946, 201970, 301892, 377365, 403940, 754730, 1433987, 1509460, 2867974, 5735948, 7169935, 14339870, 28679740]

約数ペア:

[(1, 28679740), (2, 14339870), (4, 7169935), (5, 5735948), (10, 2867974), (19, 1509460), (20, 1433987), (38, 754730), (71, 403940), (76, 377365), (95, 301892), (142, 201970), (190, 150946), (284, 100985), (355, 80788), (380, 75473), (710, 40394), (1063, 26980), (1349, 21260), (1420, 20197), (2126, 13490), (2698, 10630), (4252, 6745), (5315, 5396)]