19641770

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 38223360

約数和(自身を除く): 18581590

約数列:

[1, 2, 5, 10, 23, 46, 47, 79, 94, 115, 158, 230, 235, 395, 470, 529, 790, 1058, 1081, 1817, 2162, 2645, 3634, 3713, 5290, 5405, 7426, 9085, 10810, 18170, 18565, 24863, 37130, 41791, 49726, 83582, 85399, 124315, 170798, 208955, 248630, 417910, 426995, 853990, 1964177, 3928354, 9820885, 19641770]

約数ペア:

[(1, 19641770), (2, 9820885), (5, 3928354), (10, 1964177), (23, 853990), (46, 426995), (47, 417910), (79, 248630), (94, 208955), (115, 170798), (158, 124315), (230, 85399), (235, 83582), (395, 49726), (470, 41791), (529, 37130), (790, 24863), (1058, 18565), (1081, 18170), (1817, 10810), (2162, 9085), (2645, 7426), (3634, 5405), (3713, 5290)]