28904040

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1$

素因数の和:845

約数の個数: 160

約数和(自身を含む): 106112160

約数和(自身を除く): 77208120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 540, 594, 648, 660, 792, 810, 811, 891, 990, 1080, 1188, 1320, 1485, 1620, 1622, 1782, 1980, 2376, 2433, 2970, 3240, 3244, 3564, 3960, 4055, 4455, 4866, 5940, 6488, 7128, 7299, 8110, 8910, 8921, 9732, 11880, 12165, 14598, 16220, 17820, 17842, 19464, 21897, 24330, 26763, 29196, 32440, 35640, 35684, 36495, 43794, 44605, 48660, 53526, 58392, 65691, 71368, 72990, 80289, 87588, 89210, 97320, 107052, 109485, 131382, 133815, 145980, 160578, 175176, 178420, 214104, 218970, 240867, 262764, 267630, 291960, 321156, 328455, 356840, 401445, 437940, 481734, 525528, 535260, 642312, 656910, 722601, 802890, 875880, 963468, 1070520, 1204335, 1313820, 1445202, 1605780, 1926936, 2408670, 2627640, 2890404, 3211560, 3613005, 4817340, 5780808, 7226010, 9634680, 14452020, 28904040]

約数ペア:

[(1, 28904040), (2, 14452020), (3, 9634680), (4, 7226010), (5, 5780808), (6, 4817340), (8, 3613005), (9, 3211560), (10, 2890404), (11, 2627640), (12, 2408670), (15, 1926936), (18, 1605780), (20, 1445202), (22, 1313820), (24, 1204335), (27, 1070520), (30, 963468), (33, 875880), (36, 802890), (40, 722601), (44, 656910), (45, 642312), (54, 535260), (55, 525528), (60, 481734), (66, 437940), (72, 401445), (81, 356840), (88, 328455), (90, 321156), (99, 291960), (108, 267630), (110, 262764), (120, 240867), (132, 218970), (135, 214104), (162, 178420), (165, 175176), (180, 160578), (198, 145980), (216, 133815), (220, 131382), (264, 109485), (270, 107052), (297, 97320), (324, 89210), (330, 87588), (360, 80289), (396, 72990), (405, 71368), (440, 65691), (495, 58392), (540, 53526), (594, 48660), (648, 44605), (660, 43794), (792, 36495), (810, 35684), (811, 35640), (891, 32440), (990, 29196), (1080, 26763), (1188, 24330), (1320, 21897), (1485, 19464), (1620, 17842), (1622, 17820), (1782, 16220), (1980, 14598), (2376, 12165), (2433, 11880), (2970, 9732), (3240, 8921), (3244, 8910), (3564, 8110), (3960, 7299), (4055, 7128), (4455, 6488), (4866, 5940)]