9931780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 21901824

約数和(自身を除く): 11970044

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 193, 310, 332, 386, 415, 620, 772, 830, 965, 1660, 1930, 2573, 3860, 5146, 5983, 10292, 11966, 12865, 16019, 23932, 25730, 29915, 32038, 51460, 59830, 64076, 80095, 119660, 160190, 320380, 496589, 993178, 1986356, 2482945, 4965890, 9931780]

約数ペア:

[(1, 9931780), (2, 4965890), (4, 2482945), (5, 1986356), (10, 993178), (20, 496589), (31, 320380), (62, 160190), (83, 119660), (124, 80095), (155, 64076), (166, 59830), (193, 51460), (310, 32038), (332, 29915), (386, 25730), (415, 23932), (620, 16019), (772, 12865), (830, 11966), (965, 10292), (1660, 5983), (1930, 5146), (2573, 3860)]