18954870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:901

約数の個数: 64

約数和(自身を含む): 50388480

約数和(自身を除く): 31433610

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 71, 110, 142, 165, 213, 330, 355, 426, 710, 781, 809, 1065, 1562, 1618, 2130, 2343, 2427, 3905, 4045, 4686, 4854, 7810, 8090, 8899, 11715, 12135, 17798, 23430, 24270, 26697, 44495, 53394, 57439, 88990, 114878, 133485, 172317, 266970, 287195, 344634, 574390, 631829, 861585, 1263658, 1723170, 1895487, 3159145, 3790974, 6318290, 9477435, 18954870]

約数ペア:

[(1, 18954870), (2, 9477435), (3, 6318290), (5, 3790974), (6, 3159145), (10, 1895487), (11, 1723170), (15, 1263658), (22, 861585), (30, 631829), (33, 574390), (55, 344634), (66, 287195), (71, 266970), (110, 172317), (142, 133485), (165, 114878), (213, 88990), (330, 57439), (355, 53394), (426, 44495), (710, 26697), (781, 24270), (809, 23430), (1065, 17798), (1562, 12135), (1618, 11715), (2130, 8899), (2343, 8090), (2427, 7810), (3905, 4854), (4045, 4686)]