245775440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{99103}}^1$

素因数の和:99147

約数の個数: 40

約数和(自身を含む): 589867008

約数和(自身を除く): 344091568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 99103, 198206, 396412, 495515, 792824, 991030, 1585648, 1982060, 3072193, 3964120, 6144386, 7928240, 12288772, 15360965, 24577544, 30721930, 49155088, 61443860, 122887720, 245775440]

約数ペア:

[(1, 245775440), (2, 122887720), (4, 61443860), (5, 49155088), (8, 30721930), (10, 24577544), (16, 15360965), (20, 12288772), (31, 7928240), (40, 6144386), (62, 3964120), (80, 3072193), (124, 1982060), (155, 1585648), (248, 991030), (310, 792824), (496, 495515), (620, 396412), (1240, 198206), (2480, 99103)]