18696320

素因数分解:

$2^7\times 5^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 26542720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 223, 262, 320, 446, 524, 640, 655, 892, 1048, 1115, 1310, 1784, 2096, 2230, 2620, 3568, 4192, 4460, 5240, 7136, 8384, 8920, 10480, 14272, 16768, 17840, 20960, 28544, 29213, 35680, 41920, 58426, 71360, 83840, 116852, 142720, 146065, 233704, 292130, 467408, 584260, 934816, 1168520, 1869632, 2337040, 3739264, 4674080, 9348160, 18696320]

約数ペア:

[(1, 18696320), (2, 9348160), (4, 4674080), (5, 3739264), (8, 2337040), (10, 1869632), (16, 1168520), (20, 934816), (32, 584260), (40, 467408), (64, 292130), (80, 233704), (128, 146065), (131, 142720), (160, 116852), (223, 83840), (262, 71360), (320, 58426), (446, 41920), (524, 35680), (640, 29213), (655, 28544), (892, 20960), (1048, 17840), (1115, 16768), (1310, 14272), (1784, 10480), (2096, 8920), (2230, 8384), (2620, 7136), (3568, 5240), (4192, 4460)]