28447640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{241}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 69521760

約数和(自身を除く): 41074120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 227, 241, 260, 454, 482, 520, 908, 964, 1135, 1205, 1816, 1928, 2270, 2410, 2951, 3133, 4540, 4820, 5902, 6266, 9080, 9640, 11804, 12532, 14755, 15665, 23608, 25064, 29510, 31330, 54707, 59020, 62660, 109414, 118040, 125320, 218828, 273535, 437656, 547070, 711191, 1094140, 1422382, 2188280, 2844764, 3555955, 5689528, 7111910, 14223820, 28447640]

約数ペア:

[(1, 28447640), (2, 14223820), (4, 7111910), (5, 5689528), (8, 3555955), (10, 2844764), (13, 2188280), (20, 1422382), (26, 1094140), (40, 711191), (52, 547070), (65, 437656), (104, 273535), (130, 218828), (227, 125320), (241, 118040), (260, 109414), (454, 62660), (482, 59020), (520, 54707), (908, 31330), (964, 29510), (1135, 25064), (1205, 23608), (1816, 15665), (1928, 14755), (2270, 12532), (2410, 11804), (2951, 9640), (3133, 9080), (4540, 6266), (4820, 5902)]