13781120

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 33580440

約数和(自身を除く): 19799320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 353, 488, 610, 640, 706, 976, 1220, 1412, 1765, 1952, 2440, 2824, 3530, 3904, 4880, 5648, 7060, 7808, 9760, 11296, 14120, 19520, 21533, 22592, 28240, 39040, 43066, 45184, 56480, 86132, 107665, 112960, 172264, 215330, 225920, 344528, 430660, 689056, 861320, 1378112, 1722640, 2756224, 3445280, 6890560, 13781120]

約数ペア:

[(1, 13781120), (2, 6890560), (4, 3445280), (5, 2756224), (8, 1722640), (10, 1378112), (16, 861320), (20, 689056), (32, 430660), (40, 344528), (61, 225920), (64, 215330), (80, 172264), (122, 112960), (128, 107665), (160, 86132), (244, 56480), (305, 45184), (320, 43066), (353, 39040), (488, 28240), (610, 22592), (640, 21533), (706, 19520), (976, 14120), (1220, 11296), (1412, 9760), (1765, 7808), (1952, 7060), (2440, 5648), (2824, 4880), (3530, 3904)]