1640392816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1319}}^1\times {\mathrm{4091}}^1$

素因数の和:5437

約数の個数: 40

約数和(自身を含む): 3348892800

約数和(自身を除く): 1708499984

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1319, 2638, 4091, 5276, 8182, 10552, 16364, 21104, 25061, 32728, 50122, 65456, 77729, 100244, 155458, 200488, 310916, 400976, 621832, 1243664, 5396029, 10792058, 21584116, 43168232, 86336464, 102524551, 205049102, 410098204, 820196408, 1640392816]

約数ペア:

[(1, 1640392816), (2, 820196408), (4, 410098204), (8, 205049102), (16, 102524551), (19, 86336464), (38, 43168232), (76, 21584116), (152, 10792058), (304, 5396029), (1319, 1243664), (2638, 621832), (4091, 400976), (5276, 310916), (8182, 200488), (10552, 155458), (16364, 100244), (21104, 77729), (25061, 65456), (32728, 50122)]