140739820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{3203}}^1$

素因数の和:3251

約数の個数: 48

約数和(自身を含む): 320271840

約数和(自身を除く): 179532020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2197, 3203, 3380, 4394, 6406, 8788, 10985, 12812, 16015, 21970, 32030, 41639, 43940, 64060, 83278, 166556, 208195, 416390, 541307, 832780, 1082614, 2165228, 2706535, 5413070, 7036991, 10826140, 14073982, 28147964, 35184955, 70369910, 140739820]

約数ペア:

[(1, 140739820), (2, 70369910), (4, 35184955), (5, 28147964), (10, 14073982), (13, 10826140), (20, 7036991), (26, 5413070), (52, 2706535), (65, 2165228), (130, 1082614), (169, 832780), (260, 541307), (338, 416390), (676, 208195), (845, 166556), (1690, 83278), (2197, 64060), (3203, 43940), (3380, 41639), (4394, 32030), (6406, 21970), (8788, 16015), (10985, 12812)]