19400230

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{821}}^1$

素因数の和:984

約数の個数: 32

約数和(自身を含む): 37285920

約数和(自身を除く): 17885690

約数列:

[1, 2, 5, 10, 17, 34, 85, 139, 170, 278, 695, 821, 1390, 1642, 2363, 4105, 4726, 8210, 11815, 13957, 23630, 27914, 69785, 114119, 139570, 228238, 570595, 1141190, 1940023, 3880046, 9700115, 19400230]

約数ペア:

[(1, 19400230), (2, 9700115), (5, 3880046), (10, 1940023), (17, 1141190), (34, 570595), (85, 228238), (139, 139570), (170, 114119), (278, 69785), (695, 27914), (821, 23630), (1390, 13957), (1642, 11815), (2363, 8210), (4105, 4726)]