201891560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{388253}}^1$

素因数の和:388277

約数の個数: 32

約数和(自身を含む): 489200040

約数和(自身を除く): 287308480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 388253, 776506, 1553012, 1941265, 3106024, 3882530, 5047289, 7765060, 10094578, 15530120, 20189156, 25236445, 40378312, 50472890, 100945780, 201891560]

約数ペア:

[(1, 201891560), (2, 100945780), (4, 50472890), (5, 40378312), (8, 25236445), (10, 20189156), (13, 15530120), (20, 10094578), (26, 7765060), (40, 5047289), (52, 3882530), (65, 3106024), (104, 1941265), (130, 1553012), (260, 776506), (520, 388253)]