15821900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 37403856

約数和(自身を除く): 21581956

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 41, 50, 68, 82, 85, 100, 164, 170, 205, 227, 340, 410, 425, 454, 697, 820, 850, 908, 1025, 1135, 1394, 1700, 2050, 2270, 2788, 3485, 3859, 4100, 4540, 5675, 6970, 7718, 9307, 11350, 13940, 15436, 17425, 18614, 19295, 22700, 34850, 37228, 38590, 46535, 69700, 77180, 93070, 96475, 158219, 186140, 192950, 232675, 316438, 385900, 465350, 632876, 791095, 930700, 1582190, 3164380, 3955475, 7910950, 15821900]

約数ペア:

[(1, 15821900), (2, 7910950), (4, 3955475), (5, 3164380), (10, 1582190), (17, 930700), (20, 791095), (25, 632876), (34, 465350), (41, 385900), (50, 316438), (68, 232675), (82, 192950), (85, 186140), (100, 158219), (164, 96475), (170, 93070), (205, 77180), (227, 69700), (340, 46535), (410, 38590), (425, 37228), (454, 34850), (697, 22700), (820, 19295), (850, 18614), (908, 17425), (1025, 15436), (1135, 13940), (1394, 11350), (1700, 9307), (2050, 7718), (2270, 6970), (2788, 5675), (3485, 4540), (3859, 4100)]