1994232020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{20743}}^1$

素因数の和:20805

約数の個数: 96

約数和(自身を含む): 5018388480

約数和(自身を除く): 3024156460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 23, 38, 44, 46, 55, 76, 92, 95, 110, 115, 190, 209, 220, 230, 253, 380, 418, 437, 460, 506, 836, 874, 1012, 1045, 1265, 1748, 2090, 2185, 2530, 4180, 4370, 4807, 5060, 8740, 9614, 19228, 20743, 24035, 41486, 48070, 82972, 96140, 103715, 207430, 228173, 394117, 414860, 456346, 477089, 788234, 912692, 954178, 1140865, 1576468, 1908356, 1970585, 2281730, 2385445, 3941170, 4335287, 4563460, 4770890, 5247979, 7882340, 8670574, 9064691, 9541780, 10495958, 17341148, 18129382, 20991916, 21676435, 26239895, 36258764, 43352870, 45323455, 52479790, 86705740, 90646910, 99711601, 104959580, 181293820, 199423202, 398846404, 498558005, 997116010, 1994232020]

約数ペア:

[(1, 1994232020), (2, 997116010), (4, 498558005), (5, 398846404), (10, 199423202), (11, 181293820), (19, 104959580), (20, 99711601), (22, 90646910), (23, 86705740), (38, 52479790), (44, 45323455), (46, 43352870), (55, 36258764), (76, 26239895), (92, 21676435), (95, 20991916), (110, 18129382), (115, 17341148), (190, 10495958), (209, 9541780), (220, 9064691), (230, 8670574), (253, 7882340), (380, 5247979), (418, 4770890), (437, 4563460), (460, 4335287), (506, 3941170), (836, 2385445), (874, 2281730), (1012, 1970585), (1045, 1908356), (1265, 1576468), (1748, 1140865), (2090, 954178), (2185, 912692), (2530, 788234), (4180, 477089), (4370, 456346), (4807, 414860), (5060, 394117), (8740, 228173), (9614, 207430), (19228, 103715), (20743, 96140), (24035, 82972), (41486, 48070)]