15877940

素因数分解:

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

素因数の和:548

約数の個数: 48

約数和(自身を含む): 36218448

約数和(自身を除く): 20340508

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 260, 346, 353, 692, 706, 865, 1412, 1730, 1765, 2249, 3460, 3530, 4498, 4589, 7060, 8996, 9178, 11245, 18356, 22490, 22945, 44980, 45890, 61069, 91780, 122138, 244276, 305345, 610690, 793897, 1221380, 1587794, 3175588, 3969485, 7938970, 15877940]

約数ペア:

[(1, 15877940), (2, 7938970), (4, 3969485), (5, 3175588), (10, 1587794), (13, 1221380), (20, 793897), (26, 610690), (52, 305345), (65, 244276), (130, 122138), (173, 91780), (260, 61069), (346, 45890), (353, 44980), (692, 22945), (706, 22490), (865, 18356), (1412, 11245), (1730, 9178), (1765, 8996), (2249, 7060), (3460, 4589), (3530, 4498)]