18253840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20743}}^1$

素因数の和:20767

約数の個数: 40

約数和(自身を含む): 46300608

約数和(自身を除く): 28046768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20743, 41486, 82972, 103715, 165944, 207430, 228173, 331888, 414860, 456346, 829720, 912692, 1140865, 1659440, 1825384, 2281730, 3650768, 4563460, 9126920, 18253840]

約数ペア:

[(1, 18253840), (2, 9126920), (4, 4563460), (5, 3650768), (8, 2281730), (10, 1825384), (11, 1659440), (16, 1140865), (20, 912692), (22, 829720), (40, 456346), (44, 414860), (55, 331888), (80, 228173), (88, 207430), (110, 165944), (176, 103715), (220, 82972), (440, 41486), (880, 20743)]