201863420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{1427}}^1$

素因数の和:2090

約数の個数: 48

約数和(自身を含む): 463494528

約数和(自身を除く): 261631108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 643, 1286, 1427, 2572, 2854, 3215, 5708, 6430, 7073, 7135, 12860, 14146, 14270, 15697, 28292, 28540, 31394, 35365, 62788, 70730, 78485, 141460, 156970, 313940, 917561, 1835122, 3670244, 4587805, 9175610, 10093171, 18351220, 20186342, 40372684, 50465855, 100931710, 201863420]

約数ペア:

[(1, 201863420), (2, 100931710), (4, 50465855), (5, 40372684), (10, 20186342), (11, 18351220), (20, 10093171), (22, 9175610), (44, 4587805), (55, 3670244), (110, 1835122), (220, 917561), (643, 313940), (1286, 156970), (1427, 141460), (2572, 78485), (2854, 70730), (3215, 62788), (5708, 35365), (6430, 31394), (7073, 28540), (7135, 28292), (12860, 15697), (14146, 14270)]