201664206940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{997}}^1\times {\mathrm{206399}}^1$

素因数の和:207419

約数の個数: 72

約数和(自身を含む): 493133356800

約数和(自身を除く): 291469149860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 997, 1994, 3988, 4985, 6979, 9970, 13958, 19940, 27916, 34895, 48853, 69790, 97706, 139580, 195412, 206399, 244265, 412798, 488530, 825596, 977060, 1031995, 1444793, 2063990, 2889586, 4127980, 5779172, 7223965, 10113551, 14447930, 20227102, 28895860, 40454204, 50567755, 101135510, 202271020, 205779803, 411559606, 823119212, 1028899015, 1440458621, 2057798030, 2880917242, 4115596060, 5761834484, 7202293105, 10083210347, 14404586210, 20166420694, 28809172420, 40332841388, 50416051735, 100832103470, 201664206940]

約数ペア:

[(1, 201664206940), (2, 100832103470), (4, 50416051735), (5, 40332841388), (7, 28809172420), (10, 20166420694), (14, 14404586210), (20, 10083210347), (28, 7202293105), (35, 5761834484), (49, 4115596060), (70, 2880917242), (98, 2057798030), (140, 1440458621), (196, 1028899015), (245, 823119212), (490, 411559606), (980, 205779803), (997, 202271020), (1994, 101135510), (3988, 50567755), (4985, 40454204), (6979, 28895860), (9970, 20227102), (13958, 14447930), (19940, 10113551), (27916, 7223965), (34895, 5779172), (48853, 4127980), (69790, 2889586), (97706, 2063990), (139580, 1444793), (195412, 1031995), (206399, 977060), (244265, 825596), (412798, 488530)]