81248880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:439

約数の個数: 160

約数和(自身を含む): 269982720

約数和(自身を除く): 188733840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 41, 46, 48, 60, 69, 80, 82, 92, 115, 120, 123, 138, 164, 184, 205, 230, 240, 246, 276, 328, 345, 359, 368, 410, 460, 492, 552, 615, 656, 690, 718, 820, 920, 943, 984, 1077, 1104, 1230, 1380, 1436, 1640, 1795, 1840, 1886, 1968, 2154, 2460, 2760, 2829, 2872, 3280, 3590, 3772, 4308, 4715, 4920, 5385, 5520, 5658, 5744, 7180, 7544, 8257, 8616, 9430, 9840, 10770, 11316, 14145, 14360, 14719, 15088, 16514, 17232, 18860, 21540, 22632, 24771, 28290, 28720, 29438, 33028, 37720, 41285, 43080, 44157, 45264, 49542, 56580, 58876, 66056, 73595, 75440, 82570, 86160, 88314, 99084, 113160, 117752, 123855, 132112, 147190, 165140, 176628, 198168, 220785, 226320, 235504, 247710, 294380, 330280, 338537, 353256, 396336, 441570, 495420, 588760, 660560, 677074, 706512, 883140, 990840, 1015611, 1177520, 1354148, 1692685, 1766280, 1981680, 2031222, 2708296, 3385370, 3532560, 4062444, 5078055, 5416592, 6770740, 8124888, 10156110, 13541480, 16249776, 20312220, 27082960, 40624440, 81248880]

約数ペア:

[(1, 81248880), (2, 40624440), (3, 27082960), (4, 20312220), (5, 16249776), (6, 13541480), (8, 10156110), (10, 8124888), (12, 6770740), (15, 5416592), (16, 5078055), (20, 4062444), (23, 3532560), (24, 3385370), (30, 2708296), (40, 2031222), (41, 1981680), (46, 1766280), (48, 1692685), (60, 1354148), (69, 1177520), (80, 1015611), (82, 990840), (92, 883140), (115, 706512), (120, 677074), (123, 660560), (138, 588760), (164, 495420), (184, 441570), (205, 396336), (230, 353256), (240, 338537), (246, 330280), (276, 294380), (328, 247710), (345, 235504), (359, 226320), (368, 220785), (410, 198168), (460, 176628), (492, 165140), (552, 147190), (615, 132112), (656, 123855), (690, 117752), (718, 113160), (820, 99084), (920, 88314), (943, 86160), (984, 82570), (1077, 75440), (1104, 73595), (1230, 66056), (1380, 58876), (1436, 56580), (1640, 49542), (1795, 45264), (1840, 44157), (1886, 43080), (1968, 41285), (2154, 37720), (2460, 33028), (2760, 29438), (2829, 28720), (2872, 28290), (3280, 24771), (3590, 22632), (3772, 21540), (4308, 18860), (4715, 17232), (4920, 16514), (5385, 15088), (5520, 14719), (5658, 14360), (5744, 14145), (7180, 11316), (7544, 10770), (8257, 9840), (8616, 9430)]