1289711360

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{20563}}^1$

素因数の和:20598

約数の個数: 108

約数和(自身を含む): 3593805768

約数和(自身を除く): 2304094408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3920, 4480, 6272, 7840, 8960, 12544, 15680, 20563, 31360, 41126, 62720, 82252, 102815, 143941, 164504, 205630, 287882, 329008, 411260, 575764, 658016, 719705, 822520, 1007587, 1151528, 1316032, 1439410, 1645040, 2015174, 2303056, 2632064, 2878820, 3290080, 4030348, 4606112, 5037935, 5264128, 5757640, 6580160, 8060696, 9212224, 10075870, 11515280, 13160320, 16121392, 18424448, 20151740, 23030560, 26320640, 32242784, 36848896, 40303480, 46061120, 64485568, 80606960, 92122240, 128971136, 161213920, 184244480, 257942272, 322427840, 644855680, 1289711360]

約数ペア:

[(1, 1289711360), (2, 644855680), (4, 322427840), (5, 257942272), (7, 184244480), (8, 161213920), (10, 128971136), (14, 92122240), (16, 80606960), (20, 64485568), (28, 46061120), (32, 40303480), (35, 36848896), (40, 32242784), (49, 26320640), (56, 23030560), (64, 20151740), (70, 18424448), (80, 16121392), (98, 13160320), (112, 11515280), (128, 10075870), (140, 9212224), (160, 8060696), (196, 6580160), (224, 5757640), (245, 5264128), (256, 5037935), (280, 4606112), (320, 4030348), (392, 3290080), (448, 2878820), (490, 2632064), (560, 2303056), (640, 2015174), (784, 1645040), (896, 1439410), (980, 1316032), (1120, 1151528), (1280, 1007587), (1568, 822520), (1792, 719705), (1960, 658016), (2240, 575764), (3136, 411260), (3920, 329008), (4480, 287882), (6272, 205630), (7840, 164504), (8960, 143941), (12544, 102815), (15680, 82252), (20563, 62720), (31360, 41126)]