18754780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{523}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 43311744

約数和(自身を除く): 24556964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 163, 220, 326, 523, 652, 815, 1046, 1630, 1793, 2092, 2615, 3260, 3586, 5230, 5753, 7172, 8965, 10460, 11506, 17930, 23012, 28765, 35860, 57530, 85249, 115060, 170498, 340996, 426245, 852490, 937739, 1704980, 1875478, 3750956, 4688695, 9377390, 18754780]

約数ペア:

[(1, 18754780), (2, 9377390), (4, 4688695), (5, 3750956), (10, 1875478), (11, 1704980), (20, 937739), (22, 852490), (44, 426245), (55, 340996), (110, 170498), (163, 115060), (220, 85249), (326, 57530), (523, 35860), (652, 28765), (815, 23012), (1046, 17930), (1630, 11506), (1793, 10460), (2092, 8965), (2615, 7172), (3260, 5753), (3586, 5230)]