19914140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1583}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 45505152

約数和(自身を除く): 25591012

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 1583, 2516, 3145, 3166, 6290, 6332, 7915, 12580, 15830, 26911, 31660, 53822, 58571, 107644, 117142, 134555, 234284, 269110, 292855, 538220, 585710, 995707, 1171420, 1991414, 3982828, 4978535, 9957070, 19914140]

約数ペア:

[(1, 19914140), (2, 9957070), (4, 4978535), (5, 3982828), (10, 1991414), (17, 1171420), (20, 995707), (34, 585710), (37, 538220), (68, 292855), (74, 269110), (85, 234284), (148, 134555), (170, 117142), (185, 107644), (340, 58571), (370, 53822), (629, 31660), (740, 26911), (1258, 15830), (1583, 12580), (2516, 7915), (3145, 6332), (3166, 6290)]