320465626840

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3373}}^1\times {\mathrm{11257}}^1$

素因数の和:14852

約数の個数: 64

約数和(自身を含む): 724744107360

約数和(自身を除く): 404278480520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 3373, 4220, 6746, 8440, 11257, 13492, 16865, 22514, 26984, 33730, 45028, 56285, 67460, 90056, 112570, 134920, 225140, 450280, 711703, 1423406, 2375227, 2846812, 3558515, 4750454, 5693624, 7117030, 9500908, 11876135, 14234060, 19001816, 23752270, 28468120, 37969861, 47504540, 75939722, 95009080, 151879444, 189849305, 303758888, 379698610, 759397220, 1518794440, 8011640671, 16023281342, 32046562684, 40058203355, 64093125368, 80116406710, 160232813420, 320465626840]

約数ペア:

[(1, 320465626840), (2, 160232813420), (4, 80116406710), (5, 64093125368), (8, 40058203355), (10, 32046562684), (20, 16023281342), (40, 8011640671), (211, 1518794440), (422, 759397220), (844, 379698610), (1055, 303758888), (1688, 189849305), (2110, 151879444), (3373, 95009080), (4220, 75939722), (6746, 47504540), (8440, 37969861), (11257, 28468120), (13492, 23752270), (16865, 19001816), (22514, 14234060), (26984, 11876135), (33730, 9500908), (45028, 7117030), (56285, 5693624), (67460, 4750454), (90056, 3558515), (112570, 2846812), (134920, 2375227), (225140, 1423406), (450280, 711703)]