19365580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 44128224

約数和(自身を除く): 24762644

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 211, 260, 353, 422, 706, 844, 1055, 1412, 1765, 2110, 2743, 3530, 4220, 4589, 5486, 7060, 9178, 10972, 13715, 18356, 22945, 27430, 45890, 54860, 74483, 91780, 148966, 297932, 372415, 744830, 968279, 1489660, 1936558, 3873116, 4841395, 9682790, 19365580]

約数ペア:

[(1, 19365580), (2, 9682790), (4, 4841395), (5, 3873116), (10, 1936558), (13, 1489660), (20, 968279), (26, 744830), (52, 372415), (65, 297932), (130, 148966), (211, 91780), (260, 74483), (353, 54860), (422, 45890), (706, 27430), (844, 22945), (1055, 18356), (1412, 13715), (1765, 10972), (2110, 9178), (2743, 7060), (3530, 5486), (4220, 4589)]