139880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 340200

約数和(自身を除く): 200320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 269, 520, 538, 1076, 1345, 2152, 2690, 3497, 5380, 6994, 10760, 13988, 17485, 27976, 34970, 69940, 139880]

約数ペア:

[(1, 139880), (2, 69940), (4, 34970), (5, 27976), (8, 17485), (10, 13988), (13, 10760), (20, 6994), (26, 5380), (40, 3497), (52, 2690), (65, 2152), (104, 1345), (130, 1076), (260, 538), (269, 520)]