28153125

素因数分解:

$3^2\times 5^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:62

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 40092507

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 25, 33, 35, 39, 45, 55, 63, 65, 75, 77, 91, 99, 105, 117, 125, 143, 165, 175, 195, 225, 231, 273, 275, 315, 325, 375, 385, 429, 455, 495, 525, 585, 625, 693, 715, 819, 825, 875, 975, 1001, 1125, 1155, 1287, 1365, 1375, 1575, 1625, 1875, 1925, 2145, 2275, 2475, 2625, 2925, 3003, 3125, 3465, 3575, 4095, 4125, 4375, 4875, 5005, 5625, 5775, 6435, 6825, 6875, 7875, 8125, 9009, 9375, 9625, 10725, 11375, 12375, 13125, 14625, 15015, 17325, 17875, 20475, 20625, 21875, 24375, 25025, 28125, 28875, 32175, 34125, 34375, 39375, 40625, 45045, 48125, 53625, 56875, 61875, 65625, 73125, 75075, 86625, 89375, 102375, 103125, 121875, 125125, 144375, 160875, 170625, 196875, 225225, 240625, 268125, 284375, 309375, 365625, 375375, 433125, 446875, 511875, 625625, 721875, 804375, 853125, 1126125, 1340625, 1876875, 2165625, 2559375, 3128125, 4021875, 5630625, 9384375, 28153125]

約数ペア:

[(1, 28153125), (3, 9384375), (5, 5630625), (7, 4021875), (9, 3128125), (11, 2559375), (13, 2165625), (15, 1876875), (21, 1340625), (25, 1126125), (33, 853125), (35, 804375), (39, 721875), (45, 625625), (55, 511875), (63, 446875), (65, 433125), (75, 375375), (77, 365625), (91, 309375), (99, 284375), (105, 268125), (117, 240625), (125, 225225), (143, 196875), (165, 170625), (175, 160875), (195, 144375), (225, 125125), (231, 121875), (273, 103125), (275, 102375), (315, 89375), (325, 86625), (375, 75075), (385, 73125), (429, 65625), (455, 61875), (495, 56875), (525, 53625), (585, 48125), (625, 45045), (693, 40625), (715, 39375), (819, 34375), (825, 34125), (875, 32175), (975, 28875), (1001, 28125), (1125, 25025), (1155, 24375), (1287, 21875), (1365, 20625), (1375, 20475), (1575, 17875), (1625, 17325), (1875, 15015), (1925, 14625), (2145, 13125), (2275, 12375), (2475, 11375), (2625, 10725), (2925, 9625), (3003, 9375), (3125, 9009), (3465, 8125), (3575, 7875), (4095, 6875), (4125, 6825), (4375, 6435), (4875, 5775), (5005, 5625)]