211026840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{487}}^1$

素因数の和:681

約数の個数: 128

約数和(自身を含む): 666178560

約数和(自身を除く): 455151720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 157, 184, 230, 276, 314, 345, 460, 471, 487, 552, 628, 690, 785, 920, 942, 974, 1256, 1380, 1461, 1570, 1884, 1948, 2355, 2435, 2760, 2922, 3140, 3611, 3768, 3896, 4710, 4870, 5844, 6280, 7222, 7305, 9420, 9740, 10833, 11201, 11688, 14444, 14610, 18055, 18840, 19480, 21666, 22402, 28888, 29220, 33603, 36110, 43332, 44804, 54165, 56005, 58440, 67206, 72220, 76459, 86664, 89608, 108330, 112010, 134412, 144440, 152918, 168015, 216660, 224020, 229377, 268824, 305836, 336030, 382295, 433320, 448040, 458754, 611672, 672060, 764590, 917508, 1146885, 1344120, 1529180, 1758557, 1835016, 2293770, 3058360, 3517114, 4587540, 5275671, 7034228, 8792785, 9175080, 10551342, 14068456, 17585570, 21102684, 26378355, 35171140, 42205368, 52756710, 70342280, 105513420, 211026840]

約数ペア:

[(1, 211026840), (2, 105513420), (3, 70342280), (4, 52756710), (5, 42205368), (6, 35171140), (8, 26378355), (10, 21102684), (12, 17585570), (15, 14068456), (20, 10551342), (23, 9175080), (24, 8792785), (30, 7034228), (40, 5275671), (46, 4587540), (60, 3517114), (69, 3058360), (92, 2293770), (115, 1835016), (120, 1758557), (138, 1529180), (157, 1344120), (184, 1146885), (230, 917508), (276, 764590), (314, 672060), (345, 611672), (460, 458754), (471, 448040), (487, 433320), (552, 382295), (628, 336030), (690, 305836), (785, 268824), (920, 229377), (942, 224020), (974, 216660), (1256, 168015), (1380, 152918), (1461, 144440), (1570, 134412), (1884, 112010), (1948, 108330), (2355, 89608), (2435, 86664), (2760, 76459), (2922, 72220), (3140, 67206), (3611, 58440), (3768, 56005), (3896, 54165), (4710, 44804), (4870, 43332), (5844, 36110), (6280, 33603), (7222, 29220), (7305, 28888), (9420, 22402), (9740, 21666), (10833, 19480), (11201, 18840), (11688, 18055), (14444, 14610)]