9981225

素因数分解:

$3^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:109

約数の個数: 72

約数和(自身を含む): 19498752

約数和(自身を除く): 9517527

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 53, 75, 81, 93, 135, 155, 159, 225, 243, 265, 279, 405, 465, 477, 675, 775, 795, 837, 1215, 1325, 1395, 1431, 1643, 2025, 2325, 2385, 2511, 3975, 4185, 4293, 4929, 6075, 6975, 7155, 7533, 8215, 11925, 12555, 12879, 14787, 20925, 21465, 24645, 35775, 37665, 41075, 44361, 62775, 64395, 73935, 107325, 123225, 133083, 188325, 221805, 321975, 369675, 399249, 665415, 1109025, 1996245, 3327075, 9981225]

約数ペア:

[(1, 9981225), (3, 3327075), (5, 1996245), (9, 1109025), (15, 665415), (25, 399249), (27, 369675), (31, 321975), (45, 221805), (53, 188325), (75, 133083), (81, 123225), (93, 107325), (135, 73935), (155, 64395), (159, 62775), (225, 44361), (243, 41075), (265, 37665), (279, 35775), (405, 24645), (465, 21465), (477, 20925), (675, 14787), (775, 12879), (795, 12555), (837, 11925), (1215, 8215), (1325, 7533), (1395, 7155), (1431, 6975), (1643, 6075), (2025, 4929), (2325, 4293), (2385, 4185), (2511, 3975)]