28191060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8243}}^1$

素因数の和:8277

約数の個数: 72

約数和(自身を含む): 90024480

約数和(自身を除く): 61833420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 8243, 16486, 24729, 32972, 41215, 49458, 74187, 82430, 98916, 123645, 148374, 156617, 164860, 247290, 296748, 313234, 370935, 469851, 494580, 626468, 741870, 783085, 939702, 1409553, 1483740, 1566170, 1879404, 2349255, 2819106, 3132340, 4698510, 5638212, 7047765, 9397020, 14095530, 28191060]

約数ペア:

[(1, 28191060), (2, 14095530), (3, 9397020), (4, 7047765), (5, 5638212), (6, 4698510), (9, 3132340), (10, 2819106), (12, 2349255), (15, 1879404), (18, 1566170), (19, 1483740), (20, 1409553), (30, 939702), (36, 783085), (38, 741870), (45, 626468), (57, 494580), (60, 469851), (76, 370935), (90, 313234), (95, 296748), (114, 247290), (171, 164860), (180, 156617), (190, 148374), (228, 123645), (285, 98916), (342, 82430), (380, 74187), (570, 49458), (684, 41215), (855, 32972), (1140, 24729), (1710, 16486), (3420, 8243)]