8720775

素因数分解:

$3^2\times 5^2\times 7^3\times {\mathrm{113}}^1$

素因数の和:150

約数の個数: 72

約数和(自身を含む): 18376800

約数和(自身を除く): 9656025

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 113, 147, 175, 225, 245, 315, 339, 343, 441, 525, 565, 735, 791, 1017, 1029, 1225, 1575, 1695, 1715, 2205, 2373, 2825, 3087, 3675, 3955, 5085, 5145, 5537, 7119, 8475, 8575, 11025, 11865, 15435, 16611, 19775, 25425, 25725, 27685, 35595, 38759, 49833, 59325, 77175, 83055, 116277, 138425, 177975, 193795, 249165, 348831, 415275, 581385, 968975, 1245825, 1744155, 2906925, 8720775]

約数ペア:

[(1, 8720775), (3, 2906925), (5, 1744155), (7, 1245825), (9, 968975), (15, 581385), (21, 415275), (25, 348831), (35, 249165), (45, 193795), (49, 177975), (63, 138425), (75, 116277), (105, 83055), (113, 77175), (147, 59325), (175, 49833), (225, 38759), (245, 35595), (315, 27685), (339, 25725), (343, 25425), (441, 19775), (525, 16611), (565, 15435), (735, 11865), (791, 11025), (1017, 8575), (1029, 8475), (1225, 7119), (1575, 5537), (1695, 5145), (1715, 5085), (2205, 3955), (2373, 3675), (2825, 3087)]