311783120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1039}}^1$

素因数の和:1105

約数の個数: 120

約数和(自身を含む): 823280640

約数和(自身を除く): 511497520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 176, 220, 242, 248, 310, 341, 440, 484, 496, 605, 620, 682, 880, 968, 1039, 1210, 1240, 1364, 1705, 1936, 2078, 2420, 2480, 2728, 3410, 3751, 4156, 4840, 5195, 5456, 6820, 7502, 8312, 9680, 10390, 11429, 13640, 15004, 16624, 18755, 20780, 22858, 27280, 30008, 32209, 37510, 41560, 45716, 57145, 60016, 64418, 75020, 83120, 91432, 114290, 125719, 128836, 150040, 161045, 182864, 228580, 251438, 257672, 300080, 322090, 354299, 457160, 502876, 515344, 628595, 644180, 708598, 914320, 1005752, 1257190, 1288360, 1417196, 1771495, 2011504, 2514380, 2576720, 2834392, 3542990, 3897289, 5028760, 5668784, 7085980, 7794578, 10057520, 14171960, 15589156, 19486445, 28343920, 31178312, 38972890, 62356624, 77945780, 155891560, 311783120]

約数ペア:

[(1, 311783120), (2, 155891560), (4, 77945780), (5, 62356624), (8, 38972890), (10, 31178312), (11, 28343920), (16, 19486445), (20, 15589156), (22, 14171960), (31, 10057520), (40, 7794578), (44, 7085980), (55, 5668784), (62, 5028760), (80, 3897289), (88, 3542990), (110, 2834392), (121, 2576720), (124, 2514380), (155, 2011504), (176, 1771495), (220, 1417196), (242, 1288360), (248, 1257190), (310, 1005752), (341, 914320), (440, 708598), (484, 644180), (496, 628595), (605, 515344), (620, 502876), (682, 457160), (880, 354299), (968, 322090), (1039, 300080), (1210, 257672), (1240, 251438), (1364, 228580), (1705, 182864), (1936, 161045), (2078, 150040), (2420, 128836), (2480, 125719), (2728, 114290), (3410, 91432), (3751, 83120), (4156, 75020), (4840, 64418), (5195, 60016), (5456, 57145), (6820, 45716), (7502, 41560), (8312, 37510), (9680, 32209), (10390, 30008), (11429, 27280), (13640, 22858), (15004, 20780), (16624, 18755)]