15218420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{293}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 38007144

約数和(自身を除く): 22788724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 196, 212, 245, 265, 293, 371, 490, 530, 586, 742, 980, 1060, 1172, 1465, 1484, 1855, 2051, 2597, 2930, 3710, 4102, 5194, 5860, 7420, 8204, 10255, 10388, 12985, 14357, 15529, 20510, 25970, 28714, 31058, 41020, 51940, 57428, 62116, 71785, 77645, 108703, 143570, 155290, 217406, 287140, 310580, 434812, 543515, 760921, 1087030, 1521842, 2174060, 3043684, 3804605, 7609210, 15218420]

約数ペア:

[(1, 15218420), (2, 7609210), (4, 3804605), (5, 3043684), (7, 2174060), (10, 1521842), (14, 1087030), (20, 760921), (28, 543515), (35, 434812), (49, 310580), (53, 287140), (70, 217406), (98, 155290), (106, 143570), (140, 108703), (196, 77645), (212, 71785), (245, 62116), (265, 57428), (293, 51940), (371, 41020), (490, 31058), (530, 28714), (586, 25970), (742, 20510), (980, 15529), (1060, 14357), (1172, 12985), (1465, 10388), (1484, 10255), (1855, 8204), (2051, 7420), (2597, 5860), (2930, 5194), (3710, 4102)]