245721280

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{15671}}^1$

素因数の和:15702

約数の個数: 84

約数和(自身を含む): 680697648

約数和(自身を除く): 434976368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 15671, 15680, 31342, 62684, 78355, 109697, 125368, 156710, 219394, 250736, 313420, 438788, 501472, 548485, 626840, 767879, 877576, 1002944, 1096970, 1253680, 1535758, 1755152, 2193940, 2507360, 3071516, 3510304, 3839395, 4387880, 5014720, 6143032, 7020608, 7678790, 8775760, 12286064, 15357580, 17551520, 24572128, 30715160, 35103040, 49144256, 61430320, 122860640, 245721280]

約数ペア:

[(1, 245721280), (2, 122860640), (4, 61430320), (5, 49144256), (7, 35103040), (8, 30715160), (10, 24572128), (14, 17551520), (16, 15357580), (20, 12286064), (28, 8775760), (32, 7678790), (35, 7020608), (40, 6143032), (49, 5014720), (56, 4387880), (64, 3839395), (70, 3510304), (80, 3071516), (98, 2507360), (112, 2193940), (140, 1755152), (160, 1535758), (196, 1253680), (224, 1096970), (245, 1002944), (280, 877576), (320, 767879), (392, 626840), (448, 548485), (490, 501472), (560, 438788), (784, 313420), (980, 250736), (1120, 219394), (1568, 156710), (1960, 125368), (2240, 109697), (3136, 78355), (3920, 62684), (7840, 31342), (15671, 15680)]