18886688

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 39029760

約数和(自身を除く): 20143072

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 79, 124, 158, 241, 248, 316, 482, 496, 632, 964, 992, 1264, 1928, 2449, 2528, 3856, 4898, 7471, 7712, 9796, 14942, 19039, 19592, 29884, 38078, 39184, 59768, 76156, 78368, 119536, 152312, 239072, 304624, 590209, 609248, 1180418, 2360836, 4721672, 9443344, 18886688]

約数ペア:

[(1, 18886688), (2, 9443344), (4, 4721672), (8, 2360836), (16, 1180418), (31, 609248), (32, 590209), (62, 304624), (79, 239072), (124, 152312), (158, 119536), (241, 78368), (248, 76156), (316, 59768), (482, 39184), (496, 38078), (632, 29884), (964, 19592), (992, 19039), (1264, 14942), (1928, 9796), (2449, 7712), (2528, 7471), (3856, 4898)]