40621880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{409}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 99187200

約数和(自身を除く): 58565320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 191, 260, 382, 409, 520, 764, 818, 955, 1528, 1636, 1910, 2045, 2483, 3272, 3820, 4090, 4966, 5317, 7640, 8180, 9932, 10634, 12415, 16360, 19864, 21268, 24830, 26585, 42536, 49660, 53170, 78119, 99320, 106340, 156238, 212680, 312476, 390595, 624952, 781190, 1015547, 1562380, 2031094, 3124760, 4062188, 5077735, 8124376, 10155470, 20310940, 40621880]

約数ペア:

[(1, 40621880), (2, 20310940), (4, 10155470), (5, 8124376), (8, 5077735), (10, 4062188), (13, 3124760), (20, 2031094), (26, 1562380), (40, 1015547), (52, 781190), (65, 624952), (104, 390595), (130, 312476), (191, 212680), (260, 156238), (382, 106340), (409, 99320), (520, 78119), (764, 53170), (818, 49660), (955, 42536), (1528, 26585), (1636, 24830), (1910, 21268), (2045, 19864), (2483, 16360), (3272, 12415), (3820, 10634), (4090, 9932), (4966, 8180), (5317, 7640)]