18951310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 22520690

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 79, 115, 149, 158, 161, 230, 298, 322, 395, 553, 745, 790, 805, 1043, 1106, 1490, 1610, 1817, 2086, 2765, 3427, 3634, 5215, 5530, 6854, 9085, 10430, 11771, 12719, 17135, 18170, 23542, 23989, 25438, 34270, 47978, 58855, 63595, 82397, 117710, 119945, 127190, 164794, 239890, 270733, 411985, 541466, 823970, 1353665, 1895131, 2707330, 3790262, 9475655, 18951310]

約数ペア:

[(1, 18951310), (2, 9475655), (5, 3790262), (7, 2707330), (10, 1895131), (14, 1353665), (23, 823970), (35, 541466), (46, 411985), (70, 270733), (79, 239890), (115, 164794), (149, 127190), (158, 119945), (161, 117710), (230, 82397), (298, 63595), (322, 58855), (395, 47978), (553, 34270), (745, 25438), (790, 23989), (805, 23542), (1043, 18170), (1106, 17135), (1490, 12719), (1610, 11771), (1817, 10430), (2086, 9085), (2765, 6854), (3427, 5530), (3634, 5215)]