19996550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:166

約数の個数: 96

約数和(自身を含む): 46663680

約数和(自身を除く): 26667130

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 31, 35, 38, 50, 62, 70, 95, 97, 133, 155, 175, 190, 194, 217, 266, 310, 350, 434, 475, 485, 589, 665, 679, 775, 950, 970, 1085, 1178, 1330, 1358, 1550, 1843, 2170, 2425, 2945, 3007, 3325, 3395, 3686, 4123, 4850, 5425, 5890, 6014, 6650, 6790, 8246, 9215, 10850, 12901, 14725, 15035, 16975, 18430, 20615, 21049, 25802, 29450, 30070, 33950, 41230, 42098, 46075, 57133, 64505, 75175, 92150, 103075, 105245, 114266, 129010, 150350, 206150, 210490, 285665, 322525, 399931, 526225, 571330, 645050, 799862, 1052450, 1428325, 1999655, 2856650, 3999310, 9998275, 19996550]

約数ペア:

[(1, 19996550), (2, 9998275), (5, 3999310), (7, 2856650), (10, 1999655), (14, 1428325), (19, 1052450), (25, 799862), (31, 645050), (35, 571330), (38, 526225), (50, 399931), (62, 322525), (70, 285665), (95, 210490), (97, 206150), (133, 150350), (155, 129010), (175, 114266), (190, 105245), (194, 103075), (217, 92150), (266, 75175), (310, 64505), (350, 57133), (434, 46075), (475, 42098), (485, 41230), (589, 33950), (665, 30070), (679, 29450), (775, 25802), (950, 21049), (970, 20615), (1085, 18430), (1178, 16975), (1330, 15035), (1358, 14725), (1550, 12901), (1843, 10850), (2170, 9215), (2425, 8246), (2945, 6790), (3007, 6650), (3325, 6014), (3395, 5890), (3686, 5425), (4123, 4850)]