18873420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 55695360

約数和(自身を除く): 36821940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 73, 93, 124, 139, 146, 155, 186, 219, 278, 292, 310, 365, 372, 417, 438, 465, 556, 620, 695, 730, 834, 876, 930, 1095, 1390, 1460, 1668, 1860, 2085, 2190, 2263, 2780, 4170, 4309, 4380, 4526, 6789, 8340, 8618, 9052, 10147, 11315, 12927, 13578, 17236, 20294, 21545, 22630, 25854, 27156, 30441, 33945, 40588, 43090, 45260, 50735, 51708, 60882, 64635, 67890, 86180, 101470, 121764, 129270, 135780, 152205, 202940, 258540, 304410, 314557, 608820, 629114, 943671, 1258228, 1572785, 1887342, 3145570, 3774684, 4718355, 6291140, 9436710, 18873420]

約数ペア:

[(1, 18873420), (2, 9436710), (3, 6291140), (4, 4718355), (5, 3774684), (6, 3145570), (10, 1887342), (12, 1572785), (15, 1258228), (20, 943671), (30, 629114), (31, 608820), (60, 314557), (62, 304410), (73, 258540), (93, 202940), (124, 152205), (139, 135780), (146, 129270), (155, 121764), (186, 101470), (219, 86180), (278, 67890), (292, 64635), (310, 60882), (365, 51708), (372, 50735), (417, 45260), (438, 43090), (465, 40588), (556, 33945), (620, 30441), (695, 27156), (730, 25854), (834, 22630), (876, 21545), (930, 20294), (1095, 17236), (1390, 13578), (1460, 12927), (1668, 11315), (1860, 10147), (2085, 9052), (2190, 8618), (2263, 8340), (2780, 6789), (4170, 4526), (4309, 4380)]