128503215

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{367}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 231469056

約数和(自身を除く): 102965841

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 251, 279, 367, 465, 753, 1101, 1255, 1395, 1835, 2259, 3303, 3765, 5505, 7781, 11295, 11377, 16515, 23343, 34131, 38905, 56885, 70029, 92117, 102393, 116715, 170655, 276351, 350145, 460585, 511965, 829053, 1381755, 2855627, 4145265, 8566881, 14278135, 25700643, 42834405, 128503215]

約数ペア:

[(1, 128503215), (3, 42834405), (5, 25700643), (9, 14278135), (15, 8566881), (31, 4145265), (45, 2855627), (93, 1381755), (155, 829053), (251, 511965), (279, 460585), (367, 350145), (465, 276351), (753, 170655), (1101, 116715), (1255, 102393), (1395, 92117), (1835, 70029), (2259, 56885), (3303, 38905), (3765, 34131), (5505, 23343), (7781, 16515), (11295, 11377)]