40555520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{89}}^2$

素因数の和:203

約数の個数: 66

約数和(自身を含む): 98391102

約数和(自身を除く): 57835582

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 512, 640, 712, 890, 1024, 1280, 1424, 1780, 2560, 2848, 3560, 5120, 5696, 7120, 7921, 11392, 14240, 15842, 22784, 28480, 31684, 39605, 45568, 56960, 63368, 79210, 91136, 113920, 126736, 158420, 227840, 253472, 316840, 455680, 506944, 633680, 1013888, 1267360, 2027776, 2534720, 4055552, 5069440, 8111104, 10138880, 20277760, 40555520]

約数ペア:

[(1, 40555520), (2, 20277760), (4, 10138880), (5, 8111104), (8, 5069440), (10, 4055552), (16, 2534720), (20, 2027776), (32, 1267360), (40, 1013888), (64, 633680), (80, 506944), (89, 455680), (128, 316840), (160, 253472), (178, 227840), (256, 158420), (320, 126736), (356, 113920), (445, 91136), (512, 79210), (640, 63368), (712, 56960), (890, 45568), (1024, 39605), (1280, 31684), (1424, 28480), (1780, 22784), (2560, 15842), (2848, 14240), (3560, 11392), (5120, 7921), (5696, 7120)]