19963447890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{499211}}^1$

素因数の和:499295

約数の個数: 64

約数和(自身を含む): 50608115712

約数和(自身を除く): 30644667822

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 43, 62, 86, 93, 129, 155, 186, 215, 258, 310, 430, 465, 645, 930, 1290, 1333, 2666, 3999, 6665, 7998, 13330, 19995, 39990, 499211, 998422, 1497633, 2496055, 2995266, 4992110, 7488165, 14976330, 15475541, 21466073, 30951082, 42932146, 46426623, 64398219, 77377705, 92853246, 107330365, 128796438, 154755410, 214660730, 232133115, 321991095, 464266230, 643982190, 665448263, 1330896526, 1996344789, 3327241315, 3992689578, 6654482630, 9981723945, 19963447890]

約数ペア:

[(1, 19963447890), (2, 9981723945), (3, 6654482630), (5, 3992689578), (6, 3327241315), (10, 1996344789), (15, 1330896526), (30, 665448263), (31, 643982190), (43, 464266230), (62, 321991095), (86, 232133115), (93, 214660730), (129, 154755410), (155, 128796438), (186, 107330365), (215, 92853246), (258, 77377705), (310, 64398219), (430, 46426623), (465, 42932146), (645, 30951082), (930, 21466073), (1290, 15475541), (1333, 14976330), (2666, 7488165), (3999, 4992110), (6665, 2995266), (7998, 2496055), (13330, 1497633), (19995, 998422), (39990, 499211)]