20731840

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:174

約数の個数: 112

約数和(自身を含む): 54205632

約数和(自身を除く): 33473792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 64, 68, 74, 80, 85, 103, 136, 148, 160, 170, 185, 206, 272, 296, 320, 340, 370, 412, 515, 544, 592, 629, 680, 740, 824, 1030, 1088, 1184, 1258, 1360, 1480, 1648, 1751, 2060, 2368, 2516, 2720, 2960, 3145, 3296, 3502, 3811, 4120, 5032, 5440, 5920, 6290, 6592, 7004, 7622, 8240, 8755, 10064, 11840, 12580, 14008, 15244, 16480, 17510, 19055, 20128, 25160, 28016, 30488, 32960, 35020, 38110, 40256, 50320, 56032, 60976, 64787, 70040, 76220, 100640, 112064, 121952, 129574, 140080, 152440, 201280, 243904, 259148, 280160, 304880, 323935, 518296, 560320, 609760, 647870, 1036592, 1219520, 1295740, 2073184, 2591480, 4146368, 5182960, 10365920, 20731840]

約数ペア:

[(1, 20731840), (2, 10365920), (4, 5182960), (5, 4146368), (8, 2591480), (10, 2073184), (16, 1295740), (17, 1219520), (20, 1036592), (32, 647870), (34, 609760), (37, 560320), (40, 518296), (64, 323935), (68, 304880), (74, 280160), (80, 259148), (85, 243904), (103, 201280), (136, 152440), (148, 140080), (160, 129574), (170, 121952), (185, 112064), (206, 100640), (272, 76220), (296, 70040), (320, 64787), (340, 60976), (370, 56032), (412, 50320), (515, 40256), (544, 38110), (592, 35020), (629, 32960), (680, 30488), (740, 28016), (824, 25160), (1030, 20128), (1088, 19055), (1184, 17510), (1258, 16480), (1360, 15244), (1480, 14008), (1648, 12580), (1751, 11840), (2060, 10064), (2368, 8755), (2516, 8240), (2720, 7622), (2960, 7004), (3145, 6592), (3296, 6290), (3502, 5920), (3811, 5440), (4120, 5032)]