20202140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1277}}^1$

素因数の和:1406

約数の個数: 48

約数和(自身を含む): 48952512

約数和(自身を除く): 28750372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1277, 1582, 2260, 2554, 3164, 3955, 5108, 6385, 7910, 8939, 12770, 15820, 17878, 25540, 35756, 44695, 89390, 144301, 178780, 288602, 577204, 721505, 1010107, 1443010, 2020214, 2886020, 4040428, 5050535, 10101070, 20202140]

約数ペア:

[(1, 20202140), (2, 10101070), (4, 5050535), (5, 4040428), (7, 2886020), (10, 2020214), (14, 1443010), (20, 1010107), (28, 721505), (35, 577204), (70, 288602), (113, 178780), (140, 144301), (226, 89390), (452, 44695), (565, 35756), (791, 25540), (1130, 17878), (1277, 15820), (1582, 12770), (2260, 8939), (2554, 7910), (3164, 6385), (3955, 5108)]