19626640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22303}}^1$

素因数の和:22327

約数の個数: 40

約数和(自身を含む): 49782528

約数和(自身を除く): 30155888

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22303, 44606, 89212, 111515, 178424, 223030, 245333, 356848, 446060, 490666, 892120, 981332, 1226665, 1784240, 1962664, 2453330, 3925328, 4906660, 9813320, 19626640]

約数ペア:

[(1, 19626640), (2, 9813320), (4, 4906660), (5, 3925328), (8, 2453330), (10, 1962664), (11, 1784240), (16, 1226665), (20, 981332), (22, 892120), (40, 490666), (44, 446060), (55, 356848), (80, 245333), (88, 223030), (110, 178424), (176, 111515), (220, 89212), (440, 44606), (880, 22303)]