20293760

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1$

素因数の和:913

約数の個数: 64

約数和(自身を含む): 49884120

約数和(自身を除く): 29590360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 740, 857, 1184, 1480, 1714, 2368, 2960, 3428, 4285, 4736, 5920, 6856, 8570, 11840, 13712, 17140, 23680, 27424, 31709, 34280, 54848, 63418, 68560, 109696, 126836, 137120, 158545, 253672, 274240, 317090, 507344, 548480, 634180, 1014688, 1268360, 2029376, 2536720, 4058752, 5073440, 10146880, 20293760]

約数ペア:

[(1, 20293760), (2, 10146880), (4, 5073440), (5, 4058752), (8, 2536720), (10, 2029376), (16, 1268360), (20, 1014688), (32, 634180), (37, 548480), (40, 507344), (64, 317090), (74, 274240), (80, 253672), (128, 158545), (148, 137120), (160, 126836), (185, 109696), (296, 68560), (320, 63418), (370, 54848), (592, 34280), (640, 31709), (740, 27424), (857, 23680), (1184, 17140), (1480, 13712), (1714, 11840), (2368, 8570), (2960, 6856), (3428, 5920), (4285, 4736)]