30711975

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 60473808

約数和(自身を除く): 29761833

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 61, 75, 105, 137, 147, 175, 183, 245, 305, 411, 427, 525, 685, 735, 915, 959, 1225, 1281, 1525, 2055, 2135, 2877, 2989, 3425, 3675, 4575, 4795, 6405, 6713, 8357, 8967, 10275, 10675, 14385, 14945, 20139, 23975, 25071, 32025, 33565, 41785, 44835, 58499, 71925, 74725, 100695, 125355, 167825, 175497, 208925, 224175, 292495, 409493, 503475, 626775, 877485, 1228479, 1462475, 2047465, 4387425, 6142395, 10237325, 30711975]

約数ペア:

[(1, 30711975), (3, 10237325), (5, 6142395), (7, 4387425), (15, 2047465), (21, 1462475), (25, 1228479), (35, 877485), (49, 626775), (61, 503475), (75, 409493), (105, 292495), (137, 224175), (147, 208925), (175, 175497), (183, 167825), (245, 125355), (305, 100695), (411, 74725), (427, 71925), (525, 58499), (685, 44835), (735, 41785), (915, 33565), (959, 32025), (1225, 25071), (1281, 23975), (1525, 20139), (2055, 14945), (2135, 14385), (2877, 10675), (2989, 10275), (3425, 8967), (3675, 8357), (4575, 6713), (4795, 6405)]