19617260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{383}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 25089556

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 383, 394, 766, 788, 985, 1532, 1915, 1970, 2561, 3830, 3940, 4979, 5122, 7660, 9958, 10244, 12805, 19916, 24895, 25610, 49790, 51220, 75451, 99580, 150902, 301804, 377255, 754510, 980863, 1509020, 1961726, 3923452, 4904315, 9808630, 19617260]

約数ペア:

[(1, 19617260), (2, 9808630), (4, 4904315), (5, 3923452), (10, 1961726), (13, 1509020), (20, 980863), (26, 754510), (52, 377255), (65, 301804), (130, 150902), (197, 99580), (260, 75451), (383, 51220), (394, 49790), (766, 25610), (788, 24895), (985, 19916), (1532, 12805), (1915, 10244), (1970, 9958), (2561, 7660), (3830, 5122), (3940, 4979)]