28005460

素因数分解:

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

素因数の和:122

約数の個数: 108

約数和(自身を含む): 74247516

約数和(自身を除く): 46242056

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 41, 49, 68, 70, 82, 85, 98, 119, 140, 164, 170, 196, 205, 238, 245, 287, 340, 410, 476, 490, 574, 595, 697, 820, 833, 980, 1148, 1190, 1394, 1435, 1666, 1681, 2009, 2380, 2788, 2870, 3332, 3362, 3485, 4018, 4165, 4879, 5740, 6724, 6970, 8036, 8330, 8405, 9758, 10045, 11767, 13940, 16660, 16810, 19516, 20090, 23534, 24395, 28577, 33620, 34153, 40180, 47068, 48790, 57154, 58835, 68306, 82369, 97580, 114308, 117670, 136612, 142885, 164738, 170765, 200039, 235340, 285770, 329476, 341530, 400078, 411845, 571540, 683060, 800156, 823690, 1000195, 1400273, 1647380, 2000390, 2800546, 4000780, 5601092, 7001365, 14002730, 28005460]

約数ペア:

[(1, 28005460), (2, 14002730), (4, 7001365), (5, 5601092), (7, 4000780), (10, 2800546), (14, 2000390), (17, 1647380), (20, 1400273), (28, 1000195), (34, 823690), (35, 800156), (41, 683060), (49, 571540), (68, 411845), (70, 400078), (82, 341530), (85, 329476), (98, 285770), (119, 235340), (140, 200039), (164, 170765), (170, 164738), (196, 142885), (205, 136612), (238, 117670), (245, 114308), (287, 97580), (340, 82369), (410, 68306), (476, 58835), (490, 57154), (574, 48790), (595, 47068), (697, 40180), (820, 34153), (833, 33620), (980, 28577), (1148, 24395), (1190, 23534), (1394, 20090), (1435, 19516), (1666, 16810), (1681, 16660), (2009, 13940), (2380, 11767), (2788, 10045), (2870, 9758), (3332, 8405), (3362, 8330), (3485, 8036), (4018, 6970), (4165, 6724), (4879, 5740)]