28682500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1$

素因数の和:191

約数の個数: 120

約数和(自身を含む): 78724800

約数和(自身を除く): 50042300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 125, 140, 149, 154, 175, 220, 250, 275, 298, 308, 350, 385, 500, 550, 596, 625, 700, 745, 770, 875, 1043, 1100, 1250, 1375, 1490, 1540, 1639, 1750, 1925, 2086, 2500, 2750, 2980, 3278, 3500, 3725, 3850, 4172, 4375, 5215, 5500, 6556, 6875, 7450, 7700, 8195, 8750, 9625, 10430, 11473, 13750, 14900, 16390, 17500, 18625, 19250, 20860, 22946, 26075, 27500, 32780, 37250, 38500, 40975, 45892, 48125, 52150, 57365, 74500, 81950, 93125, 96250, 104300, 114730, 130375, 163900, 186250, 192500, 204875, 229460, 260750, 286825, 372500, 409750, 521500, 573650, 651875, 819500, 1024375, 1147300, 1303750, 1434125, 2048750, 2607500, 2868250, 4097500, 5736500, 7170625, 14341250, 28682500]

約数ペア:

[(1, 28682500), (2, 14341250), (4, 7170625), (5, 5736500), (7, 4097500), (10, 2868250), (11, 2607500), (14, 2048750), (20, 1434125), (22, 1303750), (25, 1147300), (28, 1024375), (35, 819500), (44, 651875), (50, 573650), (55, 521500), (70, 409750), (77, 372500), (100, 286825), (110, 260750), (125, 229460), (140, 204875), (149, 192500), (154, 186250), (175, 163900), (220, 130375), (250, 114730), (275, 104300), (298, 96250), (308, 93125), (350, 81950), (385, 74500), (500, 57365), (550, 52150), (596, 48125), (625, 45892), (700, 40975), (745, 38500), (770, 37250), (875, 32780), (1043, 27500), (1100, 26075), (1250, 22946), (1375, 20860), (1490, 19250), (1540, 18625), (1639, 17500), (1750, 16390), (1925, 14900), (2086, 13750), (2500, 11473), (2750, 10430), (2980, 9625), (3278, 8750), (3500, 8195), (3725, 7700), (3850, 7450), (4172, 6875), (4375, 6556), (5215, 5500)]