27965720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1248

約数の個数: 64

約数和(自身を含む): 68428800

約数和(自身を除く): 40463080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1187, 1240, 2356, 2374, 2945, 4712, 4748, 5890, 5935, 9496, 11780, 11870, 22553, 23560, 23740, 36797, 45106, 47480, 73594, 90212, 112765, 147188, 180424, 183985, 225530, 294376, 367970, 451060, 699143, 735940, 902120, 1398286, 1471880, 2796572, 3495715, 5593144, 6991430, 13982860, 27965720]

約数ペア:

[(1, 27965720), (2, 13982860), (4, 6991430), (5, 5593144), (8, 3495715), (10, 2796572), (19, 1471880), (20, 1398286), (31, 902120), (38, 735940), (40, 699143), (62, 451060), (76, 367970), (95, 294376), (124, 225530), (152, 183985), (155, 180424), (190, 147188), (248, 112765), (310, 90212), (380, 73594), (589, 47480), (620, 45106), (760, 36797), (1178, 23740), (1187, 23560), (1240, 22553), (2356, 11870), (2374, 11780), (2945, 9496), (4712, 5935), (4748, 5890)]