1808804540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{773}}^1\times {\mathrm{1481}}^1$

素因数の和:2342

約数の個数: 48

約数和(自身を含む): 3854148480

約数和(自身を除く): 2045343940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 773, 790, 1481, 1546, 1580, 2962, 3092, 3865, 5924, 7405, 7730, 14810, 15460, 29620, 61067, 116999, 122134, 233998, 244268, 305335, 467996, 584995, 610670, 1144813, 1169990, 1221340, 2289626, 2339980, 4579252, 5724065, 11448130, 22896260, 90440227, 180880454, 361760908, 452201135, 904402270, 1808804540]

約数ペア:

[(1, 1808804540), (2, 904402270), (4, 452201135), (5, 361760908), (10, 180880454), (20, 90440227), (79, 22896260), (158, 11448130), (316, 5724065), (395, 4579252), (773, 2339980), (790, 2289626), (1481, 1221340), (1546, 1169990), (1580, 1144813), (2962, 610670), (3092, 584995), (3865, 467996), (5924, 305335), (7405, 244268), (7730, 233998), (14810, 122134), (15460, 116999), (29620, 61067)]