28200620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^3\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 96

約数和(自身を含む): 73664640

約数和(自身を除く): 45464020

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 41, 68, 70, 82, 85, 119, 140, 164, 170, 205, 238, 287, 289, 340, 410, 476, 574, 578, 595, 697, 820, 1148, 1156, 1190, 1394, 1435, 1445, 2023, 2380, 2788, 2870, 2890, 3485, 4046, 4879, 4913, 5740, 5780, 6970, 8092, 9758, 9826, 10115, 11849, 13940, 19516, 19652, 20230, 23698, 24395, 24565, 34391, 40460, 47396, 48790, 49130, 59245, 68782, 82943, 97580, 98260, 118490, 137564, 165886, 171955, 201433, 236980, 331772, 343910, 402866, 414715, 687820, 805732, 829430, 1007165, 1410031, 1658860, 2014330, 2820062, 4028660, 5640124, 7050155, 14100310, 28200620]

約数ペア:

[(1, 28200620), (2, 14100310), (4, 7050155), (5, 5640124), (7, 4028660), (10, 2820062), (14, 2014330), (17, 1658860), (20, 1410031), (28, 1007165), (34, 829430), (35, 805732), (41, 687820), (68, 414715), (70, 402866), (82, 343910), (85, 331772), (119, 236980), (140, 201433), (164, 171955), (170, 165886), (205, 137564), (238, 118490), (287, 98260), (289, 97580), (340, 82943), (410, 68782), (476, 59245), (574, 49130), (578, 48790), (595, 47396), (697, 40460), (820, 34391), (1148, 24565), (1156, 24395), (1190, 23698), (1394, 20230), (1435, 19652), (1445, 19516), (2023, 13940), (2380, 11849), (2788, 10115), (2870, 9826), (2890, 9758), (3485, 8092), (4046, 6970), (4879, 5780), (4913, 5740)]