291437380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1120913}}^1$

素因数の和:1120935

約数の個数: 24

約数和(自身を含む): 659097432

約数和(自身を除く): 367660052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1120913, 2241826, 4483652, 5604565, 11209130, 14571869, 22418260, 29143738, 58287476, 72859345, 145718690, 291437380]

約数ペア:

[(1, 291437380), (2, 145718690), (4, 72859345), (5, 58287476), (10, 29143738), (13, 22418260), (20, 14571869), (26, 11209130), (52, 5604565), (65, 4483652), (130, 2241826), (260, 1120913)]