245674180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{4339}}^1$

素因数の和:4516

約数の個数: 48

約数和(自身を含む): 546840000

約数和(自身を除く): 301165820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 596, 745, 1490, 2831, 2980, 4339, 5662, 8678, 11324, 14155, 17356, 21695, 28310, 43390, 56620, 82441, 86780, 164882, 329764, 412205, 646511, 824410, 1293022, 1648820, 2586044, 3232555, 6465110, 12283709, 12930220, 24567418, 49134836, 61418545, 122837090, 245674180]

約数ペア:

[(1, 245674180), (2, 122837090), (4, 61418545), (5, 49134836), (10, 24567418), (19, 12930220), (20, 12283709), (38, 6465110), (76, 3232555), (95, 2586044), (149, 1648820), (190, 1293022), (298, 824410), (380, 646511), (596, 412205), (745, 329764), (1490, 164882), (2831, 86780), (2980, 82441), (4339, 56620), (5662, 43390), (8678, 28310), (11324, 21695), (14155, 17356)]