2011901720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{26183}}^1$

素因数の和:26324

約数の個数: 64

約数和(自身を含む): 4835661120

約数和(自身を除く): 2823759400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 113, 136, 170, 226, 340, 452, 565, 680, 904, 1130, 1921, 2260, 3842, 4520, 7684, 9605, 15368, 19210, 26183, 38420, 52366, 76840, 104732, 130915, 209464, 261830, 445111, 523660, 890222, 1047320, 1780444, 2225555, 2958679, 3560888, 4451110, 5917358, 8902220, 11834716, 14793395, 17804440, 23669432, 29586790, 50297543, 59173580, 100595086, 118347160, 201190172, 251487715, 402380344, 502975430, 1005950860, 2011901720]

約数ペア:

[(1, 2011901720), (2, 1005950860), (4, 502975430), (5, 402380344), (8, 251487715), (10, 201190172), (17, 118347160), (20, 100595086), (34, 59173580), (40, 50297543), (68, 29586790), (85, 23669432), (113, 17804440), (136, 14793395), (170, 11834716), (226, 8902220), (340, 5917358), (452, 4451110), (565, 3560888), (680, 2958679), (904, 2225555), (1130, 1780444), (1921, 1047320), (2260, 890222), (3842, 523660), (4520, 445111), (7684, 261830), (9605, 209464), (15368, 130915), (19210, 104732), (26183, 76840), (38420, 52366)]