18981420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 55738368

約数和(自身を除く): 36756948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 53, 60, 94, 106, 127, 141, 159, 188, 212, 235, 254, 265, 282, 318, 381, 470, 508, 530, 564, 635, 636, 705, 762, 795, 940, 1060, 1270, 1410, 1524, 1590, 1905, 2491, 2540, 2820, 3180, 3810, 4982, 5969, 6731, 7473, 7620, 9964, 11938, 12455, 13462, 14946, 17907, 20193, 23876, 24910, 26924, 29845, 29892, 33655, 35814, 37365, 40386, 49820, 59690, 67310, 71628, 74730, 80772, 89535, 100965, 119380, 134620, 149460, 179070, 201930, 316357, 358140, 403860, 632714, 949071, 1265428, 1581785, 1898142, 3163570, 3796284, 4745355, 6327140, 9490710, 18981420]

約数ペア:

[(1, 18981420), (2, 9490710), (3, 6327140), (4, 4745355), (5, 3796284), (6, 3163570), (10, 1898142), (12, 1581785), (15, 1265428), (20, 949071), (30, 632714), (47, 403860), (53, 358140), (60, 316357), (94, 201930), (106, 179070), (127, 149460), (141, 134620), (159, 119380), (188, 100965), (212, 89535), (235, 80772), (254, 74730), (265, 71628), (282, 67310), (318, 59690), (381, 49820), (470, 40386), (508, 37365), (530, 35814), (564, 33655), (635, 29892), (636, 29845), (705, 26924), (762, 24910), (795, 23876), (940, 20193), (1060, 17907), (1270, 14946), (1410, 13462), (1524, 12455), (1590, 11938), (1905, 9964), (2491, 7620), (2540, 7473), (2820, 6731), (3180, 5969), (3810, 4982)]