15805000

素因数分解:

$2^3\times 5^4\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:164

約数の個数: 80

約数和(自身を含む): 38659500

約数和(自身を除く): 22854500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 109, 116, 125, 145, 200, 218, 232, 250, 290, 436, 500, 545, 580, 625, 725, 872, 1000, 1090, 1160, 1250, 1450, 2180, 2500, 2725, 2900, 3161, 3625, 4360, 5000, 5450, 5800, 6322, 7250, 10900, 12644, 13625, 14500, 15805, 18125, 21800, 25288, 27250, 29000, 31610, 36250, 54500, 63220, 68125, 72500, 79025, 109000, 126440, 136250, 145000, 158050, 272500, 316100, 395125, 545000, 632200, 790250, 1580500, 1975625, 3161000, 3951250, 7902500, 15805000]

約数ペア:

[(1, 15805000), (2, 7902500), (4, 3951250), (5, 3161000), (8, 1975625), (10, 1580500), (20, 790250), (25, 632200), (29, 545000), (40, 395125), (50, 316100), (58, 272500), (100, 158050), (109, 145000), (116, 136250), (125, 126440), (145, 109000), (200, 79025), (218, 72500), (232, 68125), (250, 63220), (290, 54500), (436, 36250), (500, 31610), (545, 29000), (580, 27250), (625, 25288), (725, 21800), (872, 18125), (1000, 15805), (1090, 14500), (1160, 13625), (1250, 12644), (1450, 10900), (2180, 7250), (2500, 6322), (2725, 5800), (2900, 5450), (3161, 5000), (3625, 4360)]