21802160

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 120

約数和(自身を含む): 57558816

約数和(自身を除く): 35756656

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 41, 46, 68, 80, 82, 85, 92, 115, 136, 164, 170, 184, 205, 230, 272, 289, 328, 340, 368, 391, 410, 460, 578, 656, 680, 697, 782, 820, 920, 943, 1156, 1360, 1394, 1445, 1564, 1640, 1840, 1886, 1955, 2312, 2788, 2890, 3128, 3280, 3485, 3772, 3910, 4624, 4715, 5576, 5780, 6256, 6647, 6970, 7544, 7820, 9430, 11152, 11560, 11849, 13294, 13940, 15088, 15640, 16031, 18860, 23120, 23698, 26588, 27880, 31280, 32062, 33235, 37720, 47396, 53176, 55760, 59245, 64124, 66470, 75440, 80155, 94792, 106352, 118490, 128248, 132940, 160310, 189584, 236980, 256496, 265880, 272527, 320620, 473960, 531760, 545054, 641240, 947920, 1090108, 1282480, 1362635, 2180216, 2725270, 4360432, 5450540, 10901080, 21802160]

約数ペア:

[(1, 21802160), (2, 10901080), (4, 5450540), (5, 4360432), (8, 2725270), (10, 2180216), (16, 1362635), (17, 1282480), (20, 1090108), (23, 947920), (34, 641240), (40, 545054), (41, 531760), (46, 473960), (68, 320620), (80, 272527), (82, 265880), (85, 256496), (92, 236980), (115, 189584), (136, 160310), (164, 132940), (170, 128248), (184, 118490), (205, 106352), (230, 94792), (272, 80155), (289, 75440), (328, 66470), (340, 64124), (368, 59245), (391, 55760), (410, 53176), (460, 47396), (578, 37720), (656, 33235), (680, 32062), (697, 31280), (782, 27880), (820, 26588), (920, 23698), (943, 23120), (1156, 18860), (1360, 16031), (1394, 15640), (1445, 15088), (1564, 13940), (1640, 13294), (1840, 11849), (1886, 11560), (1955, 11152), (2312, 9430), (2788, 7820), (2890, 7544), (3128, 6970), (3280, 6647), (3485, 6256), (3772, 5780), (3910, 5576), (4624, 4715)]