201812840

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{683}}^1$

素因数の和:866

約数の個数: 64

約数和(自身を含む): 465393600

約数和(自身を除く): 263580760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 89, 166, 178, 332, 356, 415, 445, 664, 683, 712, 830, 890, 1366, 1660, 1780, 2732, 3320, 3415, 3560, 5464, 6830, 7387, 13660, 14774, 27320, 29548, 36935, 56689, 59096, 60787, 73870, 113378, 121574, 147740, 226756, 243148, 283445, 295480, 303935, 453512, 486296, 566890, 607870, 1133780, 1215740, 2267560, 2431480, 5045321, 10090642, 20181284, 25226605, 40362568, 50453210, 100906420, 201812840]

約数ペア:

[(1, 201812840), (2, 100906420), (4, 50453210), (5, 40362568), (8, 25226605), (10, 20181284), (20, 10090642), (40, 5045321), (83, 2431480), (89, 2267560), (166, 1215740), (178, 1133780), (332, 607870), (356, 566890), (415, 486296), (445, 453512), (664, 303935), (683, 295480), (712, 283445), (830, 243148), (890, 226756), (1366, 147740), (1660, 121574), (1780, 113378), (2732, 73870), (3320, 60787), (3415, 59096), (3560, 56689), (5464, 36935), (6830, 29548), (7387, 27320), (13660, 14774)]