20451375

素因数分解:

$3^2\times 5^3\times 7^3\times {\mathrm{53}}^1$

素因数の和:95

約数の個数: 96

約数和(自身を含む): 43804800

約数和(自身を除く): 23353425

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 53, 63, 75, 105, 125, 147, 159, 175, 225, 245, 265, 315, 343, 371, 375, 441, 477, 525, 735, 795, 875, 1029, 1113, 1125, 1225, 1325, 1575, 1715, 1855, 2205, 2385, 2597, 2625, 3087, 3339, 3675, 3975, 5145, 5565, 6125, 6625, 7791, 7875, 8575, 9275, 11025, 11925, 12985, 15435, 16695, 18179, 18375, 19875, 23373, 25725, 27825, 38955, 42875, 46375, 54537, 55125, 59625, 64925, 77175, 83475, 90895, 116865, 128625, 139125, 163611, 194775, 272685, 324625, 385875, 417375, 454475, 584325, 818055, 973875, 1363425, 2272375, 2921625, 4090275, 6817125, 20451375]

約数ペア:

[(1, 20451375), (3, 6817125), (5, 4090275), (7, 2921625), (9, 2272375), (15, 1363425), (21, 973875), (25, 818055), (35, 584325), (45, 454475), (49, 417375), (53, 385875), (63, 324625), (75, 272685), (105, 194775), (125, 163611), (147, 139125), (159, 128625), (175, 116865), (225, 90895), (245, 83475), (265, 77175), (315, 64925), (343, 59625), (371, 55125), (375, 54537), (441, 46375), (477, 42875), (525, 38955), (735, 27825), (795, 25725), (875, 23373), (1029, 19875), (1113, 18375), (1125, 18179), (1225, 16695), (1325, 15435), (1575, 12985), (1715, 11925), (1855, 11025), (2205, 9275), (2385, 8575), (2597, 7875), (2625, 7791), (3087, 6625), (3339, 6125), (3675, 5565), (3975, 5145)]