251798820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:570

約数の個数: 192

約数和(自身を含む): 877879296

約数和(自身を除く): 626080476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 107, 130, 140, 156, 182, 195, 210, 214, 260, 273, 321, 364, 390, 420, 428, 431, 455, 535, 546, 642, 749, 780, 862, 910, 1070, 1092, 1284, 1293, 1365, 1391, 1498, 1605, 1724, 1820, 2140, 2155, 2247, 2586, 2730, 2782, 2996, 3017, 3210, 3745, 4173, 4310, 4494, 5172, 5460, 5564, 5603, 6034, 6420, 6465, 6955, 7490, 8346, 8620, 8988, 9051, 9737, 11206, 11235, 12068, 12930, 13910, 14980, 15085, 16692, 16809, 18102, 19474, 20865, 22412, 22470, 25860, 27820, 28015, 29211, 30170, 33618, 36204, 38948, 39221, 41730, 44940, 45255, 46117, 48685, 56030, 58422, 60340, 67236, 78442, 83460, 84045, 90510, 92234, 97370, 112060, 116844, 117663, 138351, 146055, 156884, 168090, 181020, 184468, 194740, 196105, 230585, 235326, 276702, 292110, 322819, 336180, 392210, 461170, 470652, 553404, 584220, 588315, 599521, 645638, 691755, 784420, 922340, 968457, 1176630, 1199042, 1291276, 1383510, 1614095, 1798563, 1936914, 2353260, 2398084, 2767020, 2997605, 3228190, 3597126, 3873828, 4196647, 4842285, 5995210, 6456380, 7194252, 8393294, 8992815, 9684570, 11990420, 12589941, 16786588, 17985630, 19369140, 20983235, 25179882, 35971260, 41966470, 50359764, 62949705, 83932940, 125899410, 251798820]

約数ペア:

[(1, 251798820), (2, 125899410), (3, 83932940), (4, 62949705), (5, 50359764), (6, 41966470), (7, 35971260), (10, 25179882), (12, 20983235), (13, 19369140), (14, 17985630), (15, 16786588), (20, 12589941), (21, 11990420), (26, 9684570), (28, 8992815), (30, 8393294), (35, 7194252), (39, 6456380), (42, 5995210), (52, 4842285), (60, 4196647), (65, 3873828), (70, 3597126), (78, 3228190), (84, 2997605), (91, 2767020), (105, 2398084), (107, 2353260), (130, 1936914), (140, 1798563), (156, 1614095), (182, 1383510), (195, 1291276), (210, 1199042), (214, 1176630), (260, 968457), (273, 922340), (321, 784420), (364, 691755), (390, 645638), (420, 599521), (428, 588315), (431, 584220), (455, 553404), (535, 470652), (546, 461170), (642, 392210), (749, 336180), (780, 322819), (862, 292110), (910, 276702), (1070, 235326), (1092, 230585), (1284, 196105), (1293, 194740), (1365, 184468), (1391, 181020), (1498, 168090), (1605, 156884), (1724, 146055), (1820, 138351), (2140, 117663), (2155, 116844), (2247, 112060), (2586, 97370), (2730, 92234), (2782, 90510), (2996, 84045), (3017, 83460), (3210, 78442), (3745, 67236), (4173, 60340), (4310, 58422), (4494, 56030), (5172, 48685), (5460, 46117), (5564, 45255), (5603, 44940), (6034, 41730), (6420, 39221), (6465, 38948), (6955, 36204), (7490, 33618), (8346, 30170), (8620, 29211), (8988, 28015), (9051, 27820), (9737, 25860), (11206, 22470), (11235, 22412), (12068, 20865), (12930, 19474), (13910, 18102), (14980, 16809), (15085, 16692)]