67440640

素因数分解:

$2^{12}\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 104

約数和(自身を含む): 168079320

約数和(自身を除く): 100638680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 89, 128, 148, 160, 178, 185, 256, 296, 320, 356, 370, 445, 512, 592, 640, 712, 740, 890, 1024, 1184, 1280, 1424, 1480, 1780, 2048, 2368, 2560, 2848, 2960, 3293, 3560, 4096, 4736, 5120, 5696, 5920, 6586, 7120, 9472, 10240, 11392, 11840, 13172, 14240, 16465, 18944, 20480, 22784, 23680, 26344, 28480, 32930, 37888, 45568, 47360, 52688, 56960, 65860, 75776, 91136, 94720, 105376, 113920, 131720, 151552, 182272, 189440, 210752, 227840, 263440, 364544, 378880, 421504, 455680, 526880, 757760, 843008, 911360, 1053760, 1686016, 1822720, 2107520, 3372032, 4215040, 6744064, 8430080, 13488128, 16860160, 33720320, 67440640]

約数ペア:

[(1, 67440640), (2, 33720320), (4, 16860160), (5, 13488128), (8, 8430080), (10, 6744064), (16, 4215040), (20, 3372032), (32, 2107520), (37, 1822720), (40, 1686016), (64, 1053760), (74, 911360), (80, 843008), (89, 757760), (128, 526880), (148, 455680), (160, 421504), (178, 378880), (185, 364544), (256, 263440), (296, 227840), (320, 210752), (356, 189440), (370, 182272), (445, 151552), (512, 131720), (592, 113920), (640, 105376), (712, 94720), (740, 91136), (890, 75776), (1024, 65860), (1184, 56960), (1280, 52688), (1424, 47360), (1480, 45568), (1780, 37888), (2048, 32930), (2368, 28480), (2560, 26344), (2848, 23680), (2960, 22784), (3293, 20480), (3560, 18944), (4096, 16465), (4736, 14240), (5120, 13172), (5696, 11840), (5920, 11392), (6586, 10240), (7120, 9472)]