19243160

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3461}}^1$

素因数の和:3611

約数の個数: 32

約数和(自身を含む): 43621200

約数和(自身を除く): 24378040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3461, 5560, 6922, 13844, 17305, 27688, 34610, 69220, 138440, 481079, 962158, 1924316, 2405395, 3848632, 4810790, 9621580, 19243160]

約数ペア:

[(1, 19243160), (2, 9621580), (4, 4810790), (5, 3848632), (8, 2405395), (10, 1924316), (20, 962158), (40, 481079), (139, 138440), (278, 69220), (556, 34610), (695, 27688), (1112, 17305), (1390, 13844), (2780, 6922), (3461, 5560)]