647325280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{82567}}^1$

素因数の和:82596

約数の個数: 72

約数和(自身を含む): 1779010128

約数和(自身を除く): 1131684848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 82567, 165134, 330268, 412835, 577969, 660536, 825670, 1155938, 1321072, 1651340, 2311876, 2642144, 2889845, 3302680, 4045783, 4623752, 5779690, 6605360, 8091566, 9247504, 11559380, 13210720, 16183132, 18495008, 20228915, 23118760, 32366264, 40457830, 46237520, 64732528, 80915660, 92475040, 129465056, 161831320, 323662640, 647325280]

約数ペア:

[(1, 647325280), (2, 323662640), (4, 161831320), (5, 129465056), (7, 92475040), (8, 80915660), (10, 64732528), (14, 46237520), (16, 40457830), (20, 32366264), (28, 23118760), (32, 20228915), (35, 18495008), (40, 16183132), (49, 13210720), (56, 11559380), (70, 9247504), (80, 8091566), (98, 6605360), (112, 5779690), (140, 4623752), (160, 4045783), (196, 3302680), (224, 2889845), (245, 2642144), (280, 2311876), (392, 1651340), (490, 1321072), (560, 1155938), (784, 825670), (980, 660536), (1120, 577969), (1568, 412835), (1960, 330268), (3920, 165134), (7840, 82567)]