20172758175

素因数分解:

$3^2\times 5^2\times {\mathrm{151}}^1\times {\mathrm{281}}^1\times {\mathrm{2113}}^1$

素因数の和:2561

約数の個数: 72

約数和(自身を含む): 36517641888

約数和(自身を除く): 16344883713

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 151, 225, 281, 453, 755, 843, 1359, 1405, 2113, 2265, 2529, 3775, 4215, 6339, 6795, 7025, 10565, 11325, 12645, 19017, 21075, 31695, 33975, 42431, 52825, 63225, 95085, 127293, 158475, 212155, 319063, 381879, 475425, 593753, 636465, 957189, 1060775, 1595315, 1781259, 1909395, 2871567, 2968765, 3182325, 4785945, 5343777, 7976575, 8906295, 9546975, 14357835, 14843825, 23929725, 26718885, 44531475, 71789175, 89656703, 133594425, 268970109, 448283515, 806910327, 1344850545, 2241417575, 4034551635, 6724252725, 20172758175]

約数ペア:

[(1, 20172758175), (3, 6724252725), (5, 4034551635), (9, 2241417575), (15, 1344850545), (25, 806910327), (45, 448283515), (75, 268970109), (151, 133594425), (225, 89656703), (281, 71789175), (453, 44531475), (755, 26718885), (843, 23929725), (1359, 14843825), (1405, 14357835), (2113, 9546975), (2265, 8906295), (2529, 7976575), (3775, 5343777), (4215, 4785945), (6339, 3182325), (6795, 2968765), (7025, 2871567), (10565, 1909395), (11325, 1781259), (12645, 1595315), (19017, 1060775), (21075, 957189), (31695, 636465), (33975, 593753), (42431, 475425), (52825, 381879), (63225, 319063), (95085, 212155), (127293, 158475)]