2000205040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{3943}}^1$

素因数の和:4346

約数の個数: 80

約数和(自身を含む): 4938487488

約数和(自身を除く): 2938282448

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 373, 680, 746, 1360, 1492, 1865, 2984, 3730, 3943, 5968, 6341, 7460, 7886, 12682, 14920, 15772, 19715, 25364, 29840, 31544, 31705, 39430, 50728, 63088, 63410, 67031, 78860, 101456, 126820, 134062, 157720, 253640, 268124, 315440, 335155, 507280, 536248, 670310, 1072496, 1340620, 1470739, 2681240, 2941478, 5362480, 5882956, 7353695, 11765912, 14707390, 23531824, 25002563, 29414780, 50005126, 58829560, 100010252, 117659120, 125012815, 200020504, 250025630, 400041008, 500051260, 1000102520, 2000205040]

約数ペア:

[(1, 2000205040), (2, 1000102520), (4, 500051260), (5, 400041008), (8, 250025630), (10, 200020504), (16, 125012815), (17, 117659120), (20, 100010252), (34, 58829560), (40, 50005126), (68, 29414780), (80, 25002563), (85, 23531824), (136, 14707390), (170, 11765912), (272, 7353695), (340, 5882956), (373, 5362480), (680, 2941478), (746, 2681240), (1360, 1470739), (1492, 1340620), (1865, 1072496), (2984, 670310), (3730, 536248), (3943, 507280), (5968, 335155), (6341, 315440), (7460, 268124), (7886, 253640), (12682, 157720), (14920, 134062), (15772, 126820), (19715, 101456), (25364, 78860), (29840, 67031), (31544, 63410), (31705, 63088), (39430, 50728)]