28852520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 67692240

約数和(自身を除く): 38839720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 73, 82, 146, 164, 205, 241, 292, 328, 365, 410, 482, 584, 730, 820, 964, 1205, 1460, 1640, 1928, 2410, 2920, 2993, 4820, 5986, 9640, 9881, 11972, 14965, 17593, 19762, 23944, 29930, 35186, 39524, 49405, 59860, 70372, 79048, 87965, 98810, 119720, 140744, 175930, 197620, 351860, 395240, 703720, 721313, 1442626, 2885252, 3606565, 5770504, 7213130, 14426260, 28852520]

約数ペア:

[(1, 28852520), (2, 14426260), (4, 7213130), (5, 5770504), (8, 3606565), (10, 2885252), (20, 1442626), (40, 721313), (41, 703720), (73, 395240), (82, 351860), (146, 197620), (164, 175930), (205, 140744), (241, 119720), (292, 98810), (328, 87965), (365, 79048), (410, 70372), (482, 59860), (584, 49405), (730, 39524), (820, 35186), (964, 29930), (1205, 23944), (1460, 19762), (1640, 17593), (1928, 14965), (2410, 11972), (2920, 9881), (2993, 9640), (4820, 5986)]