258979880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2287}}^1$

素因数の和:2466

約数の個数: 64

約数和(自身を含む): 617760000

約数和(自身を除く): 358780120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 149, 152, 190, 298, 380, 596, 745, 760, 1192, 1490, 2287, 2831, 2980, 4574, 5662, 5960, 9148, 11324, 11435, 14155, 18296, 22648, 22870, 28310, 43453, 45740, 56620, 86906, 91480, 113240, 173812, 217265, 340763, 347624, 434530, 681526, 869060, 1363052, 1703815, 1738120, 2726104, 3407630, 6474497, 6815260, 12948994, 13630520, 25897988, 32372485, 51795976, 64744970, 129489940, 258979880]

約数ペア:

[(1, 258979880), (2, 129489940), (4, 64744970), (5, 51795976), (8, 32372485), (10, 25897988), (19, 13630520), (20, 12948994), (38, 6815260), (40, 6474497), (76, 3407630), (95, 2726104), (149, 1738120), (152, 1703815), (190, 1363052), (298, 869060), (380, 681526), (596, 434530), (745, 347624), (760, 340763), (1192, 217265), (1490, 173812), (2287, 113240), (2831, 91480), (2980, 86906), (4574, 56620), (5662, 45740), (5960, 43453), (9148, 28310), (11324, 22870), (11435, 22648), (14155, 18296)]