207979520

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{829}}^1$

素因数の和:868

約数の個数: 132

約数和(自身を含む): 581061420

約数和(自身を除く): 373081900

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, 512, 560, 640, 784, 829, 896, 980, 1024, 1120, 1280, 1568, 1658, 1792, 1960, 2240, 2560, 3136, 3316, 3584, 3920, 4145, 4480, 5120, 5803, 6272, 6632, 7168, 7840, 8290, 8960, 11606, 12544, 13264, 15680, 16580, 17920, 23212, 25088, 26528, 29015, 31360, 33160, 35840, 40621, 46424, 50176, 53056, 58030, 62720, 66320, 81242, 92848, 106112, 116060, 125440, 132640, 162484, 185696, 203105, 212224, 232120, 250880, 265280, 324968, 371392, 406210, 424448, 464240, 530560, 649936, 742784, 812420, 848896, 928480, 1061120, 1299872, 1485568, 1624840, 1856960, 2122240, 2599744, 2971136, 3249680, 3713920, 4244480, 5199488, 5942272, 6499360, 7427840, 10398976, 12998720, 14855680, 20797952, 25997440, 29711360, 41595904, 51994880, 103989760, 207979520]

約数ペア:

[(1, 207979520), (2, 103989760), (4, 51994880), (5, 41595904), (7, 29711360), (8, 25997440), (10, 20797952), (14, 14855680), (16, 12998720), (20, 10398976), (28, 7427840), (32, 6499360), (35, 5942272), (40, 5199488), (49, 4244480), (56, 3713920), (64, 3249680), (70, 2971136), (80, 2599744), (98, 2122240), (112, 1856960), (128, 1624840), (140, 1485568), (160, 1299872), (196, 1061120), (224, 928480), (245, 848896), (256, 812420), (280, 742784), (320, 649936), (392, 530560), (448, 464240), (490, 424448), (512, 406210), (560, 371392), (640, 324968), (784, 265280), (829, 250880), (896, 232120), (980, 212224), (1024, 203105), (1120, 185696), (1280, 162484), (1568, 132640), (1658, 125440), (1792, 116060), (1960, 106112), (2240, 92848), (2560, 81242), (3136, 66320), (3316, 62720), (3584, 58030), (3920, 53056), (4145, 50176), (4480, 46424), (5120, 40621), (5803, 35840), (6272, 33160), (6632, 31360), (7168, 29015), (7840, 26528), (8290, 25088), (8960, 23212), (11606, 17920), (12544, 16580), (13264, 15680)]