721740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 2112768

約数和(自身を除く): 1391028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 523, 690, 1046, 1380, 1569, 2092, 2615, 3138, 5230, 6276, 7845, 10460, 12029, 15690, 24058, 31380, 36087, 48116, 60145, 72174, 120290, 144348, 180435, 240580, 360870, 721740]

約数ペア:

[(1, 721740), (2, 360870), (3, 240580), (4, 180435), (5, 144348), (6, 120290), (10, 72174), (12, 60145), (15, 48116), (20, 36087), (23, 31380), (30, 24058), (46, 15690), (60, 12029), (69, 10460), (92, 7845), (115, 6276), (138, 5230), (230, 3138), (276, 2615), (345, 2092), (460, 1569), (523, 1380), (690, 1046)]