19488640

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{823}}^1$

素因数の和:879

約数の個数: 64

約数和(自身を含む): 47907360

約数和(自身を除く): 28418720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 740, 823, 1184, 1480, 1646, 2368, 2960, 3292, 4115, 4736, 5920, 6584, 8230, 11840, 13168, 16460, 23680, 26336, 30451, 32920, 52672, 60902, 65840, 105344, 121804, 131680, 152255, 243608, 263360, 304510, 487216, 526720, 609020, 974432, 1218040, 1948864, 2436080, 3897728, 4872160, 9744320, 19488640]

約数ペア:

[(1, 19488640), (2, 9744320), (4, 4872160), (5, 3897728), (8, 2436080), (10, 1948864), (16, 1218040), (20, 974432), (32, 609020), (37, 526720), (40, 487216), (64, 304510), (74, 263360), (80, 243608), (128, 152255), (148, 131680), (160, 121804), (185, 105344), (296, 65840), (320, 60902), (370, 52672), (592, 32920), (640, 30451), (740, 26336), (823, 23680), (1184, 16460), (1480, 13168), (1646, 11840), (2368, 8230), (2960, 6584), (3292, 5920), (4115, 4736)]