213607120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1579}}^1$

素因数の和:1700

約数の個数: 80

約数和(自身を含む): 528984000

約数和(自身を除く): 315376880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 89, 95, 152, 178, 190, 304, 356, 380, 445, 712, 760, 890, 1424, 1520, 1579, 1691, 1780, 3158, 3382, 3560, 6316, 6764, 7120, 7895, 8455, 12632, 13528, 15790, 16910, 25264, 27056, 30001, 31580, 33820, 60002, 63160, 67640, 120004, 126320, 135280, 140531, 150005, 240008, 281062, 300010, 480016, 562124, 600020, 702655, 1124248, 1200040, 1405310, 2248496, 2400080, 2670089, 2810620, 5340178, 5621240, 10680356, 11242480, 13350445, 21360712, 26700890, 42721424, 53401780, 106803560, 213607120]

約数ペア:

[(1, 213607120), (2, 106803560), (4, 53401780), (5, 42721424), (8, 26700890), (10, 21360712), (16, 13350445), (19, 11242480), (20, 10680356), (38, 5621240), (40, 5340178), (76, 2810620), (80, 2670089), (89, 2400080), (95, 2248496), (152, 1405310), (178, 1200040), (190, 1124248), (304, 702655), (356, 600020), (380, 562124), (445, 480016), (712, 300010), (760, 281062), (890, 240008), (1424, 150005), (1520, 140531), (1579, 135280), (1691, 126320), (1780, 120004), (3158, 67640), (3382, 63160), (3560, 60002), (6316, 33820), (6764, 31580), (7120, 30001), (7895, 27056), (8455, 25264), (12632, 16910), (13528, 15790)]