1975220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 4572288

約数和(自身を除く): 2597068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 107, 130, 142, 214, 260, 284, 355, 428, 535, 710, 923, 1070, 1391, 1420, 1846, 2140, 2782, 3692, 4615, 5564, 6955, 7597, 9230, 13910, 15194, 18460, 27820, 30388, 37985, 75970, 98761, 151940, 197522, 395044, 493805, 987610, 1975220]

約数ペア:

[(1, 1975220), (2, 987610), (4, 493805), (5, 395044), (10, 197522), (13, 151940), (20, 98761), (26, 75970), (52, 37985), (65, 30388), (71, 27820), (107, 18460), (130, 15194), (142, 13910), (214, 9230), (260, 7597), (284, 6955), (355, 5564), (428, 4615), (535, 3692), (710, 2782), (923, 2140), (1070, 1846), (1391, 1420)]