28777700

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{839}}^1$

素因数の和:874

約数の個数: 72

約数和(自身を含む): 72912000

約数和(自身を除く): 44134300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 343, 350, 490, 686, 700, 839, 980, 1225, 1372, 1678, 1715, 2450, 3356, 3430, 4195, 4900, 5873, 6860, 8390, 8575, 11746, 16780, 17150, 20975, 23492, 29365, 34300, 41111, 41950, 58730, 82222, 83900, 117460, 146825, 164444, 205555, 287777, 293650, 411110, 575554, 587300, 822220, 1027775, 1151108, 1438885, 2055550, 2877770, 4111100, 5755540, 7194425, 14388850, 28777700]

約数ペア:

[(1, 28777700), (2, 14388850), (4, 7194425), (5, 5755540), (7, 4111100), (10, 2877770), (14, 2055550), (20, 1438885), (25, 1151108), (28, 1027775), (35, 822220), (49, 587300), (50, 575554), (70, 411110), (98, 293650), (100, 287777), (140, 205555), (175, 164444), (196, 146825), (245, 117460), (343, 83900), (350, 82222), (490, 58730), (686, 41950), (700, 41111), (839, 34300), (980, 29365), (1225, 23492), (1372, 20975), (1678, 17150), (1715, 16780), (2450, 11746), (3356, 8575), (3430, 8390), (4195, 6860), (4900, 5873)]