201245720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20369}}^1$

素因数の和:20412

約数の個数: 64

約数和(自身を含む): 513324000

約数和(自身を除く): 312078280

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 20369, 40738, 81476, 101845, 162952, 203690, 264797, 387011, 407380, 529594, 774022, 814760, 1059188, 1323985, 1548044, 1935055, 2118376, 2647970, 3096088, 3870110, 5031143, 5295940, 7740220, 10062286, 10591880, 15480440, 20124572, 25155715, 40249144, 50311430, 100622860, 201245720]

約数ペア:

[(1, 201245720), (2, 100622860), (4, 50311430), (5, 40249144), (8, 25155715), (10, 20124572), (13, 15480440), (19, 10591880), (20, 10062286), (26, 7740220), (38, 5295940), (40, 5031143), (52, 3870110), (65, 3096088), (76, 2647970), (95, 2118376), (104, 1935055), (130, 1548044), (152, 1323985), (190, 1059188), (247, 814760), (260, 774022), (380, 529594), (494, 407380), (520, 387011), (760, 264797), (988, 203690), (1235, 162952), (1976, 101845), (2470, 81476), (4940, 40738), (9880, 20369)]