26691280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{619}}^1$

素因数の和:657

約数の個数: 120

約数和(自身を含む): 78878880

約数和(自身を除く): 52187600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 560, 616, 619, 770, 784, 880, 980, 1078, 1232, 1238, 1540, 1960, 2156, 2476, 2695, 3080, 3095, 3920, 4312, 4333, 4952, 5390, 6160, 6190, 6809, 8624, 8666, 9904, 10780, 12380, 13618, 17332, 21560, 21665, 24760, 27236, 30331, 34045, 34664, 43120, 43330, 47663, 49520, 54472, 60662, 68090, 69328, 86660, 95326, 108944, 121324, 136180, 151655, 173320, 190652, 238315, 242648, 272360, 303310, 333641, 346640, 381304, 476630, 485296, 544720, 606620, 667282, 762608, 953260, 1213240, 1334564, 1668205, 1906520, 2426480, 2669128, 3336410, 3813040, 5338256, 6672820, 13345640, 26691280]

約数ペア:

[(1, 26691280), (2, 13345640), (4, 6672820), (5, 5338256), (7, 3813040), (8, 3336410), (10, 2669128), (11, 2426480), (14, 1906520), (16, 1668205), (20, 1334564), (22, 1213240), (28, 953260), (35, 762608), (40, 667282), (44, 606620), (49, 544720), (55, 485296), (56, 476630), (70, 381304), (77, 346640), (80, 333641), (88, 303310), (98, 272360), (110, 242648), (112, 238315), (140, 190652), (154, 173320), (176, 151655), (196, 136180), (220, 121324), (245, 108944), (280, 95326), (308, 86660), (385, 69328), (392, 68090), (440, 60662), (490, 54472), (539, 49520), (560, 47663), (616, 43330), (619, 43120), (770, 34664), (784, 34045), (880, 30331), (980, 27236), (1078, 24760), (1232, 21665), (1238, 21560), (1540, 17332), (1960, 13618), (2156, 12380), (2476, 10780), (2695, 9904), (3080, 8666), (3095, 8624), (3920, 6809), (4312, 6190), (4333, 6160), (4952, 5390)]