19647500

素因数分解:

$2^2\times 5^4\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:324

約数の個数: 60

約数和(自身を含む): 44610720

約数和(自身を除く): 24963220

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 250, 271, 290, 500, 542, 580, 625, 725, 1084, 1250, 1355, 1450, 2500, 2710, 2900, 3625, 5420, 6775, 7250, 7859, 13550, 14500, 15718, 18125, 27100, 31436, 33875, 36250, 39295, 67750, 72500, 78590, 135500, 157180, 169375, 196475, 338750, 392950, 677500, 785900, 982375, 1964750, 3929500, 4911875, 9823750, 19647500]

約数ペア:

[(1, 19647500), (2, 9823750), (4, 4911875), (5, 3929500), (10, 1964750), (20, 982375), (25, 785900), (29, 677500), (50, 392950), (58, 338750), (100, 196475), (116, 169375), (125, 157180), (145, 135500), (250, 78590), (271, 72500), (290, 67750), (500, 39295), (542, 36250), (580, 33875), (625, 31436), (725, 27100), (1084, 18125), (1250, 15718), (1355, 14500), (1450, 13550), (2500, 7859), (2710, 7250), (2900, 6775), (3625, 5420)]