28507300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:481

約数の個数: 72

約数和(自身を含む): 67261320

約数和(自身を除く): 38754020

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 41, 50, 68, 82, 85, 100, 164, 170, 205, 340, 409, 410, 425, 697, 818, 820, 850, 1025, 1394, 1636, 1700, 2045, 2050, 2788, 3485, 4090, 4100, 6953, 6970, 8180, 10225, 13906, 13940, 16769, 17425, 20450, 27812, 33538, 34765, 34850, 40900, 67076, 69530, 69700, 83845, 139060, 167690, 173825, 285073, 335380, 347650, 419225, 570146, 695300, 838450, 1140292, 1425365, 1676900, 2850730, 5701460, 7126825, 14253650, 28507300]

約数ペア:

[(1, 28507300), (2, 14253650), (4, 7126825), (5, 5701460), (10, 2850730), (17, 1676900), (20, 1425365), (25, 1140292), (34, 838450), (41, 695300), (50, 570146), (68, 419225), (82, 347650), (85, 335380), (100, 285073), (164, 173825), (170, 167690), (205, 139060), (340, 83845), (409, 69700), (410, 69530), (425, 67076), (697, 40900), (818, 34850), (820, 34765), (850, 33538), (1025, 27812), (1394, 20450), (1636, 17425), (1700, 16769), (2045, 13940), (2050, 13906), (2788, 10225), (3485, 8180), (4090, 6970), (4100, 6953)]