7983880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 19440000

約数和(自身を除く): 11456120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 59, 68, 85, 118, 136, 170, 199, 236, 295, 340, 398, 472, 590, 680, 796, 995, 1003, 1180, 1592, 1990, 2006, 2360, 3383, 3980, 4012, 5015, 6766, 7960, 8024, 10030, 11741, 13532, 16915, 20060, 23482, 27064, 33830, 40120, 46964, 58705, 67660, 93928, 117410, 135320, 199597, 234820, 399194, 469640, 798388, 997985, 1596776, 1995970, 3991940, 7983880]

約数ペア:

[(1, 7983880), (2, 3991940), (4, 1995970), (5, 1596776), (8, 997985), (10, 798388), (17, 469640), (20, 399194), (34, 234820), (40, 199597), (59, 135320), (68, 117410), (85, 93928), (118, 67660), (136, 58705), (170, 46964), (199, 40120), (236, 33830), (295, 27064), (340, 23482), (398, 20060), (472, 16915), (590, 13532), (680, 11741), (796, 10030), (995, 8024), (1003, 7960), (1180, 6766), (1592, 5015), (1990, 4012), (2006, 3980), (2360, 3383)]