258213480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{307397}}^1$

素因数の和:307418

約数の個数: 64

約数和(自身を含む): 885306240

約数和(自身を除く): 627092760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 307397, 614794, 922191, 1229588, 1536985, 1844382, 2151779, 2459176, 3073970, 3688764, 4303558, 4610955, 6147940, 6455337, 7377528, 8607116, 9221910, 10758895, 12295880, 12910674, 17214232, 18443820, 21517790, 25821348, 32276685, 36887640, 43035580, 51642696, 64553370, 86071160, 129106740, 258213480]

約数ペア:

[(1, 258213480), (2, 129106740), (3, 86071160), (4, 64553370), (5, 51642696), (6, 43035580), (7, 36887640), (8, 32276685), (10, 25821348), (12, 21517790), (14, 18443820), (15, 17214232), (20, 12910674), (21, 12295880), (24, 10758895), (28, 9221910), (30, 8607116), (35, 7377528), (40, 6455337), (42, 6147940), (56, 4610955), (60, 4303558), (70, 3688764), (84, 3073970), (105, 2459176), (120, 2151779), (140, 1844382), (168, 1536985), (210, 1229588), (280, 922191), (420, 614794), (840, 307397)]