1557996884

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^2$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 3058917120

約数和(自身を除く): 1500920236

約数列:

[1, 2, 4, 19, 31, 38, 41, 62, 76, 82, 124, 127, 164, 254, 508, 589, 779, 1178, 1271, 1558, 2356, 2413, 2542, 3116, 3937, 4826, 5084, 5207, 7874, 9652, 10414, 15748, 16129, 20828, 24149, 32258, 48298, 64516, 74803, 96596, 98933, 149606, 161417, 197866, 299212, 306451, 322834, 395732, 499999, 612902, 645668, 661289, 999998, 1225804, 1322578, 1999996, 2645156, 3066923, 6133846, 9499981, 12267692, 12564491, 18999962, 20499959, 25128982, 37999924, 40999918, 50257964, 81999836, 389499221, 778998442, 1557996884]

約数ペア:

[(1, 1557996884), (2, 778998442), (4, 389499221), (19, 81999836), (31, 50257964), (38, 40999918), (41, 37999924), (62, 25128982), (76, 20499959), (82, 18999962), (124, 12564491), (127, 12267692), (164, 9499981), (254, 6133846), (508, 3066923), (589, 2645156), (779, 1999996), (1178, 1322578), (1271, 1225804), (1558, 999998), (2356, 661289), (2413, 645668), (2542, 612902), (3116, 499999), (3937, 395732), (4826, 322834), (5084, 306451), (5207, 299212), (7874, 197866), (9652, 161417), (10414, 149606), (15748, 98933), (16129, 96596), (20828, 74803), (24149, 64516), (32258, 48298)]