2019635006680

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1\times {\mathrm{488009}}^1$

素因数の和:488836

約数の個数: 64

約数和(自身を含む): 4580071452000

約数和(自身を除く): 2560436445320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 659, 785, 1256, 1318, 1570, 2636, 3140, 3295, 5272, 6280, 6590, 13180, 26360, 103463, 206926, 413852, 488009, 517315, 827704, 976018, 1034630, 1952036, 2069260, 2440045, 3904072, 4138520, 4880090, 9760180, 19520360, 76617413, 153234826, 306469652, 321597931, 383087065, 612939304, 643195862, 766174130, 1286391724, 1532348260, 1607989655, 2572783448, 3064696520, 3215979310, 6431958620, 12863917240, 50490875167, 100981750334, 201963500668, 252454375835, 403927001336, 504908751670, 1009817503340, 2019635006680]

約数ペア:

[(1, 2019635006680), (2, 1009817503340), (4, 504908751670), (5, 403927001336), (8, 252454375835), (10, 201963500668), (20, 100981750334), (40, 50490875167), (157, 12863917240), (314, 6431958620), (628, 3215979310), (659, 3064696520), (785, 2572783448), (1256, 1607989655), (1318, 1532348260), (1570, 1286391724), (2636, 766174130), (3140, 643195862), (3295, 612939304), (5272, 383087065), (6280, 321597931), (6590, 306469652), (13180, 153234826), (26360, 76617413), (103463, 19520360), (206926, 9760180), (413852, 4880090), (488009, 4138520), (517315, 3904072), (827704, 2440045), (976018, 2069260), (1034630, 1952036)]