321094280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19919}}^1$

素因数の和:19974

約数の個数: 64

約数和(自身を含む): 803174400

約数和(自身を除く): 482080120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 19919, 39838, 79676, 99595, 159352, 199190, 258947, 398380, 517894, 617489, 796760, 1035788, 1234978, 1294735, 2071576, 2469956, 2589470, 3087445, 4939912, 5178940, 6174890, 8027357, 10357880, 12349780, 16054714, 24699560, 32109428, 40136785, 64218856, 80273570, 160547140, 321094280]

約数ペア:

[(1, 321094280), (2, 160547140), (4, 80273570), (5, 64218856), (8, 40136785), (10, 32109428), (13, 24699560), (20, 16054714), (26, 12349780), (31, 10357880), (40, 8027357), (52, 6174890), (62, 5178940), (65, 4939912), (104, 3087445), (124, 2589470), (130, 2469956), (155, 2071576), (248, 1294735), (260, 1234978), (310, 1035788), (403, 796760), (520, 617489), (620, 517894), (806, 398380), (1240, 258947), (1612, 199190), (2015, 159352), (3224, 99595), (4030, 79676), (8060, 39838), (16120, 19919)]