2019949490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{773}}^1\times {\mathrm{20101}}^1$

素因数の和:20894

約数の個数: 32

約数和(自身を含む): 3920854896

約数和(自身を除く): 1900905406

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 773, 1546, 3865, 7730, 10049, 20098, 20101, 40202, 50245, 100490, 100505, 201010, 261313, 522626, 1306565, 2613130, 15538073, 31076146, 77690365, 155380730, 201994949, 403989898, 1009974745, 2019949490]

約数ペア:

[(1, 2019949490), (2, 1009974745), (5, 403989898), (10, 201994949), (13, 155380730), (26, 77690365), (65, 31076146), (130, 15538073), (773, 2613130), (1546, 1306565), (3865, 522626), (7730, 261313), (10049, 201010), (20098, 100505), (20101, 100490), (40202, 50245)]