31755880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{353}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 77610960

約数和(自身を除く): 45855080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 173, 260, 346, 353, 520, 692, 706, 865, 1384, 1412, 1730, 1765, 2249, 2824, 3460, 3530, 4498, 4589, 6920, 7060, 8996, 9178, 11245, 14120, 17992, 18356, 22490, 22945, 36712, 44980, 45890, 61069, 89960, 91780, 122138, 183560, 244276, 305345, 488552, 610690, 793897, 1221380, 1587794, 2442760, 3175588, 3969485, 6351176, 7938970, 15877940, 31755880]

約数ペア:

[(1, 31755880), (2, 15877940), (4, 7938970), (5, 6351176), (8, 3969485), (10, 3175588), (13, 2442760), (20, 1587794), (26, 1221380), (40, 793897), (52, 610690), (65, 488552), (104, 305345), (130, 244276), (173, 183560), (260, 122138), (346, 91780), (353, 89960), (520, 61069), (692, 45890), (706, 44980), (865, 36712), (1384, 22945), (1412, 22490), (1730, 18356), (1765, 17992), (2249, 14120), (2824, 11245), (3460, 9178), (3530, 8996), (4498, 7060), (4589, 6920)]