19720650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4241}}^1$

素因数の和:4287

約数の個数: 48

約数和(自身を含む): 50496768

約数和(自身を除く): 30776118

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4241, 4650, 8482, 12723, 21205, 25446, 42410, 63615, 106025, 127230, 131471, 212050, 262942, 318075, 394413, 636150, 657355, 788826, 1314710, 1972065, 3286775, 3944130, 6573550, 9860325, 19720650]

約数ペア:

[(1, 19720650), (2, 9860325), (3, 6573550), (5, 3944130), (6, 3286775), (10, 1972065), (15, 1314710), (25, 788826), (30, 657355), (31, 636150), (50, 394413), (62, 318075), (75, 262942), (93, 212050), (150, 131471), (155, 127230), (186, 106025), (310, 63615), (465, 42410), (775, 25446), (930, 21205), (1550, 12723), (2325, 8482), (4241, 4650)]