28626980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{313}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 64093680

約数和(自身を除く): 35466700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 269, 313, 340, 538, 626, 1076, 1252, 1345, 1565, 2690, 3130, 4573, 5321, 5380, 6260, 9146, 10642, 18292, 21284, 22865, 26605, 45730, 53210, 84197, 91460, 106420, 168394, 336788, 420985, 841970, 1431349, 1683940, 2862698, 5725396, 7156745, 14313490, 28626980]

約数ペア:

[(1, 28626980), (2, 14313490), (4, 7156745), (5, 5725396), (10, 2862698), (17, 1683940), (20, 1431349), (34, 841970), (68, 420985), (85, 336788), (170, 168394), (269, 106420), (313, 91460), (340, 84197), (538, 53210), (626, 45730), (1076, 26605), (1252, 22865), (1345, 21284), (1565, 18292), (2690, 10642), (3130, 9146), (4573, 6260), (5321, 5380)]