404397540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{31643}}^1$

素因数の和:31729

約数の個数: 72

約数和(自身を含む): 1243988928

約数和(自身を除く): 839591388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 31643, 63286, 94929, 126572, 158215, 189858, 284787, 316430, 379716, 474645, 569574, 632860, 949290, 1139148, 1423935, 1898580, 2246653, 2847870, 4493306, 5695740, 6739959, 8986612, 11233265, 13479918, 20219877, 22466530, 26959836, 33699795, 40439754, 44933060, 67399590, 80879508, 101099385, 134799180, 202198770, 404397540]

約数ペア:

[(1, 404397540), (2, 202198770), (3, 134799180), (4, 101099385), (5, 80879508), (6, 67399590), (9, 44933060), (10, 40439754), (12, 33699795), (15, 26959836), (18, 22466530), (20, 20219877), (30, 13479918), (36, 11233265), (45, 8986612), (60, 6739959), (71, 5695740), (90, 4493306), (142, 2847870), (180, 2246653), (213, 1898580), (284, 1423935), (355, 1139148), (426, 949290), (639, 632860), (710, 569574), (852, 474645), (1065, 379716), (1278, 316430), (1420, 284787), (2130, 189858), (2556, 158215), (3195, 126572), (4260, 94929), (6390, 63286), (12780, 31643)]