161961540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{207643}}^1$

素因数の和:207668

約数の個数: 48

約数和(自身を含む): 488378688

約数和(自身を除く): 326417148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 207643, 415286, 622929, 830572, 1038215, 1245858, 2076430, 2491716, 2699359, 3114645, 4152860, 5398718, 6229290, 8098077, 10797436, 12458580, 13496795, 16196154, 26993590, 32392308, 40490385, 53987180, 80980770, 161961540]

約数ペア:

[(1, 161961540), (2, 80980770), (3, 53987180), (4, 40490385), (5, 32392308), (6, 26993590), (10, 16196154), (12, 13496795), (13, 12458580), (15, 10797436), (20, 8098077), (26, 6229290), (30, 5398718), (39, 4152860), (52, 3114645), (60, 2699359), (65, 2491716), (78, 2076430), (130, 1245858), (156, 1038215), (195, 830572), (260, 622929), (390, 415286), (780, 207643)]