18406880

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3967}}^1$

素因数の和:4011

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 26590240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 3967, 4640, 7934, 15868, 19835, 31736, 39670, 63472, 79340, 115043, 126944, 158680, 230086, 317360, 460172, 575215, 634720, 920344, 1150430, 1840688, 2300860, 3681376, 4601720, 9203440, 18406880]

約数ペア:

[(1, 18406880), (2, 9203440), (4, 4601720), (5, 3681376), (8, 2300860), (10, 1840688), (16, 1150430), (20, 920344), (29, 634720), (32, 575215), (40, 460172), (58, 317360), (80, 230086), (116, 158680), (145, 126944), (160, 115043), (232, 79340), (290, 63472), (464, 39670), (580, 31736), (928, 19835), (1160, 15868), (2320, 7934), (3967, 4640)]