20026544

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 60

約数和(自身を含む): 42483888

約数和(自身を除く): 22457344

約数列:

[1, 2, 4, 8, 16, 17, 34, 61, 68, 71, 122, 136, 142, 244, 272, 284, 289, 488, 568, 578, 976, 1037, 1136, 1156, 1207, 2074, 2312, 2414, 4148, 4331, 4624, 4828, 8296, 8662, 9656, 16592, 17324, 17629, 19312, 20519, 34648, 35258, 41038, 69296, 70516, 73627, 82076, 141032, 147254, 164152, 282064, 294508, 328304, 589016, 1178032, 1251659, 2503318, 5006636, 10013272, 20026544]

約数ペア:

[(1, 20026544), (2, 10013272), (4, 5006636), (8, 2503318), (16, 1251659), (17, 1178032), (34, 589016), (61, 328304), (68, 294508), (71, 282064), (122, 164152), (136, 147254), (142, 141032), (244, 82076), (272, 73627), (284, 70516), (289, 69296), (488, 41038), (568, 35258), (578, 34648), (976, 20519), (1037, 19312), (1136, 17629), (1156, 17324), (1207, 16592), (2074, 9656), (2312, 8662), (2414, 8296), (4148, 4828), (4331, 4624)]