18989220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1657}}^1$

素因数の和:1860

約数の個数: 48

約数和(自身を含む): 53480448

約数和(自身を除く): 34491228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 191, 382, 573, 764, 955, 1146, 1657, 1910, 2292, 2865, 3314, 3820, 4971, 5730, 6628, 8285, 9942, 11460, 16570, 19884, 24855, 33140, 49710, 99420, 316487, 632974, 949461, 1265948, 1582435, 1898922, 3164870, 3797844, 4747305, 6329740, 9494610, 18989220]

約数ペア:

[(1, 18989220), (2, 9494610), (3, 6329740), (4, 4747305), (5, 3797844), (6, 3164870), (10, 1898922), (12, 1582435), (15, 1265948), (20, 949461), (30, 632974), (60, 316487), (191, 99420), (382, 49710), (573, 33140), (764, 24855), (955, 19884), (1146, 16570), (1657, 11460), (1910, 9942), (2292, 8285), (2865, 6628), (3314, 5730), (3820, 4971)]