1640782690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{85147}}^1$

素因数の和:85242

約数の個数: 32

約数和(自身を含む): 3089850624

約数和(自身を除く): 1449067934

約数列:

[1, 2, 5, 10, 41, 47, 82, 94, 205, 235, 410, 470, 1927, 3854, 9635, 19270, 85147, 170294, 425735, 851470, 3491027, 4001909, 6982054, 8003818, 17455135, 20009545, 34910270, 40019090, 164078269, 328156538, 820391345, 1640782690]

約数ペア:

[(1, 1640782690), (2, 820391345), (5, 328156538), (10, 164078269), (41, 40019090), (47, 34910270), (82, 20009545), (94, 17455135), (205, 8003818), (235, 6982054), (410, 4001909), (470, 3491027), (1927, 851470), (3854, 425735), (9635, 170294), (19270, 85147)]