420115860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{2341}}^1$

素因数の和:3353

約数の個数: 72

約数和(自身を含む): 1276174536

約数和(自身を除く): 856058676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 997, 1994, 2341, 2991, 3988, 4682, 4985, 5982, 7023, 8973, 9364, 9970, 11705, 11964, 14046, 14955, 17946, 19940, 21069, 23410, 28092, 29910, 35115, 35892, 42138, 44865, 46820, 59820, 70230, 84276, 89730, 105345, 140460, 179460, 210690, 421380, 2333977, 4667954, 7001931, 9335908, 11669885, 14003862, 21005793, 23339770, 28007724, 35009655, 42011586, 46679540, 70019310, 84023172, 105028965, 140038620, 210057930, 420115860]

約数ペア:

[(1, 420115860), (2, 210057930), (3, 140038620), (4, 105028965), (5, 84023172), (6, 70019310), (9, 46679540), (10, 42011586), (12, 35009655), (15, 28007724), (18, 23339770), (20, 21005793), (30, 14003862), (36, 11669885), (45, 9335908), (60, 7001931), (90, 4667954), (180, 2333977), (997, 421380), (1994, 210690), (2341, 179460), (2991, 140460), (3988, 105345), (4682, 89730), (4985, 84276), (5982, 70230), (7023, 59820), (8973, 46820), (9364, 44865), (9970, 42138), (11705, 35892), (11964, 35115), (14046, 29910), (14955, 28092), (17946, 23410), (19940, 21069)]