218779020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1215439}}^1$

素因数の和:1215454

約数の個数: 36

約数和(自身を含む): 663630240

約数和(自身を除く): 444851220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1215439, 2430878, 3646317, 4861756, 6077195, 7292634, 10938951, 12154390, 14585268, 18231585, 21877902, 24308780, 36463170, 43755804, 54694755, 72926340, 109389510, 218779020]

約数ペア:

[(1, 218779020), (2, 109389510), (3, 72926340), (4, 54694755), (5, 43755804), (6, 36463170), (9, 24308780), (10, 21877902), (12, 18231585), (15, 14585268), (18, 12154390), (20, 10938951), (30, 7292634), (36, 6077195), (45, 4861756), (60, 3646317), (90, 2430878), (180, 1215439)]