78645420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{62417}}^1$

素因数の和:62439

約数の個数: 72

約数和(自身を含む): 272641824

約数和(自身を除く): 193996404

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 62417, 124834, 187251, 249668, 312085, 374502, 436919, 561753, 624170, 749004, 873838, 936255, 1123506, 1248340, 1310757, 1747676, 1872510, 2184595, 2247012, 2621514, 2808765, 3745020, 3932271, 4369190, 5243028, 5617530, 6553785, 7864542, 8738380, 11235060, 13107570, 15729084, 19661355, 26215140, 39322710, 78645420]

約数ペア:

[(1, 78645420), (2, 39322710), (3, 26215140), (4, 19661355), (5, 15729084), (6, 13107570), (7, 11235060), (9, 8738380), (10, 7864542), (12, 6553785), (14, 5617530), (15, 5243028), (18, 4369190), (20, 3932271), (21, 3745020), (28, 2808765), (30, 2621514), (35, 2247012), (36, 2184595), (42, 1872510), (45, 1747676), (60, 1310757), (63, 1248340), (70, 1123506), (84, 936255), (90, 873838), (105, 749004), (126, 624170), (140, 561753), (180, 436919), (210, 374502), (252, 312085), (315, 249668), (420, 187251), (630, 124834), (1260, 62417)]