252213520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7823}}^1$

素因数の和:7880

約数の個数: 80

約数和(自身を含む): 651958272

約数和(自身を除く): 399744752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 7823, 8060, 15646, 16120, 31292, 32240, 39115, 62584, 78230, 101699, 125168, 156460, 203398, 242513, 312920, 406796, 485026, 508495, 625840, 813592, 970052, 1016990, 1212565, 1627184, 1940104, 2033980, 2425130, 3152669, 3880208, 4067960, 4850260, 6305338, 8135920, 9700520, 12610676, 15763345, 19401040, 25221352, 31526690, 50442704, 63053380, 126106760, 252213520]

約数ペア:

[(1, 252213520), (2, 126106760), (4, 63053380), (5, 50442704), (8, 31526690), (10, 25221352), (13, 19401040), (16, 15763345), (20, 12610676), (26, 9700520), (31, 8135920), (40, 6305338), (52, 4850260), (62, 4067960), (65, 3880208), (80, 3152669), (104, 2425130), (124, 2033980), (130, 1940104), (155, 1627184), (208, 1212565), (248, 1016990), (260, 970052), (310, 813592), (403, 625840), (496, 508495), (520, 485026), (620, 406796), (806, 312920), (1040, 242513), (1240, 203398), (1612, 156460), (2015, 125168), (2480, 101699), (3224, 78230), (4030, 62584), (6448, 39115), (7823, 32240), (8060, 31292), (15646, 16120)]