19083380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 22284940

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 151, 178, 284, 302, 355, 356, 445, 604, 710, 755, 890, 1420, 1510, 1780, 3020, 6319, 10721, 12638, 13439, 21442, 25276, 26878, 31595, 42884, 53605, 53756, 63190, 67195, 107210, 126380, 134390, 214420, 268780, 954169, 1908338, 3816676, 4770845, 9541690, 19083380]

約数ペア:

[(1, 19083380), (2, 9541690), (4, 4770845), (5, 3816676), (10, 1908338), (20, 954169), (71, 268780), (89, 214420), (142, 134390), (151, 126380), (178, 107210), (284, 67195), (302, 63190), (355, 53756), (356, 53605), (445, 42884), (604, 31595), (710, 26878), (755, 25276), (890, 21442), (1420, 13439), (1510, 12638), (1780, 10721), (3020, 6319)]