18934175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 28123200

約数和(自身を除く): 9189025

約数列:

[1, 5, 13, 17, 23, 25, 65, 85, 115, 149, 221, 299, 325, 391, 425, 575, 745, 1105, 1495, 1937, 1955, 2533, 3427, 3725, 5083, 5525, 7475, 9685, 9775, 12665, 17135, 25415, 32929, 44551, 48425, 58259, 63325, 85675, 127075, 164645, 222755, 291295, 757367, 823225, 1113775, 1456475, 3786835, 18934175]

約数ペア:

[(1, 18934175), (5, 3786835), (13, 1456475), (17, 1113775), (23, 823225), (25, 757367), (65, 291295), (85, 222755), (115, 164645), (149, 127075), (221, 85675), (299, 63325), (325, 58259), (391, 48425), (425, 44551), (575, 32929), (745, 25415), (1105, 17135), (1495, 12665), (1937, 9775), (1955, 9685), (2533, 7475), (3427, 5525), (3725, 5083)]