28942900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1$

素因数の和:433

約数の個数: 72

約数和(自身を含む): 72495360

約数和(自身を除く): 43552460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 173, 175, 239, 346, 350, 478, 692, 700, 865, 956, 1195, 1211, 1673, 1730, 2390, 2422, 3346, 3460, 4325, 4780, 4844, 5975, 6055, 6692, 8365, 8650, 11950, 12110, 16730, 17300, 23900, 24220, 30275, 33460, 41347, 41825, 60550, 82694, 83650, 121100, 165388, 167300, 206735, 289429, 413470, 578858, 826940, 1033675, 1157716, 1447145, 2067350, 2894290, 4134700, 5788580, 7235725, 14471450, 28942900]

約数ペア:

[(1, 28942900), (2, 14471450), (4, 7235725), (5, 5788580), (7, 4134700), (10, 2894290), (14, 2067350), (20, 1447145), (25, 1157716), (28, 1033675), (35, 826940), (50, 578858), (70, 413470), (100, 289429), (140, 206735), (173, 167300), (175, 165388), (239, 121100), (346, 83650), (350, 82694), (478, 60550), (692, 41825), (700, 41347), (865, 33460), (956, 30275), (1195, 24220), (1211, 23900), (1673, 17300), (1730, 16730), (2390, 12110), (2422, 11950), (3346, 8650), (3460, 8365), (4325, 6692), (4780, 6055), (4844, 5975)]