18437620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 22204940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 83, 116, 145, 166, 290, 332, 383, 415, 580, 766, 830, 1532, 1660, 1915, 2407, 3830, 4814, 7660, 9628, 11107, 12035, 22214, 24070, 31789, 44428, 48140, 55535, 63578, 111070, 127156, 158945, 222140, 317890, 635780, 921881, 1843762, 3687524, 4609405, 9218810, 18437620]

約数ペア:

[(1, 18437620), (2, 9218810), (4, 4609405), (5, 3687524), (10, 1843762), (20, 921881), (29, 635780), (58, 317890), (83, 222140), (116, 158945), (145, 127156), (166, 111070), (290, 63578), (332, 55535), (383, 48140), (415, 44428), (580, 31789), (766, 24070), (830, 22214), (1532, 12035), (1660, 11107), (1915, 9628), (2407, 7660), (3830, 4814)]