20341746640

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1\times {\mathrm{5099}}^1$

素因数の和:6220

約数の個数: 80

約数和(自身を含む): 48355833600

約数和(自身を除く): 28014086960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1061, 1880, 2122, 3760, 4244, 5099, 5305, 8488, 10198, 10610, 16976, 20396, 21220, 25495, 40792, 42440, 49867, 50990, 81584, 84880, 99734, 101980, 199468, 203960, 239653, 249335, 398936, 407920, 479306, 498670, 797872, 958612, 997340, 1198265, 1917224, 1994680, 2396530, 3834448, 3989360, 4793060, 5410039, 9586120, 10820078, 19172240, 21640156, 27050195, 43280312, 54100390, 86560624, 108200780, 216401560, 254271833, 432803120, 508543666, 1017087332, 1271359165, 2034174664, 2542718330, 4068349328, 5085436660, 10170873320, 20341746640]

約数ペア:

[(1, 20341746640), (2, 10170873320), (4, 5085436660), (5, 4068349328), (8, 2542718330), (10, 2034174664), (16, 1271359165), (20, 1017087332), (40, 508543666), (47, 432803120), (80, 254271833), (94, 216401560), (188, 108200780), (235, 86560624), (376, 54100390), (470, 43280312), (752, 27050195), (940, 21640156), (1061, 19172240), (1880, 10820078), (2122, 9586120), (3760, 5410039), (4244, 4793060), (5099, 3989360), (5305, 3834448), (8488, 2396530), (10198, 1994680), (10610, 1917224), (16976, 1198265), (20396, 997340), (21220, 958612), (25495, 797872), (40792, 498670), (42440, 479306), (49867, 407920), (50990, 398936), (81584, 249335), (84880, 239653), (99734, 203960), (101980, 199468)]