15193720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12253}}^1$

素因数の和:12295

約数の個数: 32

約数和(自身を含む): 35291520

約数和(自身を除く): 20097800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12253, 24506, 49012, 61265, 98024, 122530, 245060, 379843, 490120, 759686, 1519372, 1899215, 3038744, 3798430, 7596860, 15193720]

約数ペア:

[(1, 15193720), (2, 7596860), (4, 3798430), (5, 3038744), (8, 1899215), (10, 1519372), (20, 759686), (31, 490120), (40, 379843), (62, 245060), (124, 122530), (155, 98024), (248, 61265), (310, 49012), (620, 24506), (1240, 12253)]