401066840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{323441}}^1$

素因数の和:323483

約数の個数: 32

約数和(自身を含む): 931512960

約数和(自身を除く): 530446120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 323441, 646882, 1293764, 1617205, 2587528, 3234410, 6468820, 10026671, 12937640, 20053342, 40106684, 50133355, 80213368, 100266710, 200533420, 401066840]

約数ペア:

[(1, 401066840), (2, 200533420), (4, 100266710), (5, 80213368), (8, 50133355), (10, 40106684), (20, 20053342), (31, 12937640), (40, 10026671), (62, 6468820), (124, 3234410), (155, 2587528), (248, 1617205), (310, 1293764), (620, 646882), (1240, 323441)]