20805750

素因数分解:

$2^1\times 3^2\times 5^3\times 7^1\times {\mathrm{1321}}^1$

素因数の和:1351

約数の個数: 96

約数和(自身を含む): 64344384

約数和(自身を除く): 43538634

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 125, 126, 150, 175, 210, 225, 250, 315, 350, 375, 450, 525, 630, 750, 875, 1050, 1125, 1321, 1575, 1750, 2250, 2625, 2642, 3150, 3963, 5250, 6605, 7875, 7926, 9247, 11889, 13210, 15750, 18494, 19815, 23778, 27741, 33025, 39630, 46235, 55482, 59445, 66050, 83223, 92470, 99075, 118890, 138705, 165125, 166446, 198150, 231175, 277410, 297225, 330250, 416115, 462350, 495375, 594450, 693525, 832230, 990750, 1155875, 1387050, 1486125, 2080575, 2311750, 2972250, 3467625, 4161150, 6935250, 10402875, 20805750]

約数ペア:

[(1, 20805750), (2, 10402875), (3, 6935250), (5, 4161150), (6, 3467625), (7, 2972250), (9, 2311750), (10, 2080575), (14, 1486125), (15, 1387050), (18, 1155875), (21, 990750), (25, 832230), (30, 693525), (35, 594450), (42, 495375), (45, 462350), (50, 416115), (63, 330250), (70, 297225), (75, 277410), (90, 231175), (105, 198150), (125, 166446), (126, 165125), (150, 138705), (175, 118890), (210, 99075), (225, 92470), (250, 83223), (315, 66050), (350, 59445), (375, 55482), (450, 46235), (525, 39630), (630, 33025), (750, 27741), (875, 23778), (1050, 19815), (1125, 18494), (1321, 15750), (1575, 13210), (1750, 11889), (2250, 9247), (2625, 7926), (2642, 7875), (3150, 6605), (3963, 5250)]