20356875

素因数分解:

$3^2\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1$

素因数の和:91

約数の個数: 120

約数和(自身を含む): 46785024

約数和(自身を除く): 26428149

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 33, 35, 45, 47, 55, 63, 75, 77, 99, 105, 125, 141, 165, 175, 225, 231, 235, 275, 315, 329, 375, 385, 423, 495, 517, 525, 625, 693, 705, 825, 875, 987, 1125, 1155, 1175, 1375, 1551, 1575, 1645, 1875, 1925, 2115, 2475, 2585, 2625, 2961, 3465, 3525, 3619, 4125, 4375, 4653, 4935, 5625, 5775, 5875, 6875, 7755, 7875, 8225, 9625, 10575, 10857, 12375, 12925, 13125, 14805, 17325, 17625, 18095, 20625, 23265, 24675, 28875, 29375, 32571, 38775, 39375, 41125, 48125, 52875, 54285, 61875, 64625, 74025, 86625, 88125, 90475, 116325, 123375, 144375, 162855, 193875, 205625, 264375, 271425, 323125, 370125, 433125, 452375, 581625, 616875, 814275, 969375, 1357125, 1850625, 2261875, 2908125, 4071375, 6785625, 20356875]

約数ペア:

[(1, 20356875), (3, 6785625), (5, 4071375), (7, 2908125), (9, 2261875), (11, 1850625), (15, 1357125), (21, 969375), (25, 814275), (33, 616875), (35, 581625), (45, 452375), (47, 433125), (55, 370125), (63, 323125), (75, 271425), (77, 264375), (99, 205625), (105, 193875), (125, 162855), (141, 144375), (165, 123375), (175, 116325), (225, 90475), (231, 88125), (235, 86625), (275, 74025), (315, 64625), (329, 61875), (375, 54285), (385, 52875), (423, 48125), (495, 41125), (517, 39375), (525, 38775), (625, 32571), (693, 29375), (705, 28875), (825, 24675), (875, 23265), (987, 20625), (1125, 18095), (1155, 17625), (1175, 17325), (1375, 14805), (1551, 13125), (1575, 12925), (1645, 12375), (1875, 10857), (1925, 10575), (2115, 9625), (2475, 8225), (2585, 7875), (2625, 7755), (2961, 6875), (3465, 5875), (3525, 5775), (3619, 5625), (4125, 4935), (4375, 4653)]