81961236

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 251596800

約数和(自身を除く): 169635564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 79, 84, 92, 126, 138, 158, 161, 179, 207, 237, 252, 276, 316, 322, 358, 414, 474, 483, 537, 553, 644, 711, 716, 828, 948, 966, 1074, 1106, 1253, 1422, 1449, 1611, 1659, 1817, 1932, 2148, 2212, 2506, 2844, 2898, 3222, 3318, 3634, 3759, 4117, 4977, 5012, 5451, 5796, 6444, 6636, 7268, 7518, 8234, 9954, 10902, 11277, 12351, 12719, 14141, 15036, 16353, 16468, 19908, 21804, 22554, 24702, 25438, 28282, 28819, 32706, 37053, 38157, 42423, 45108, 49404, 50876, 56564, 57638, 65412, 74106, 76314, 84846, 86457, 98987, 114471, 115276, 127269, 148212, 152628, 169692, 172914, 197974, 228942, 254538, 259371, 296961, 325243, 345828, 395948, 457884, 509076, 518742, 593922, 650486, 890883, 975729, 1037484, 1187844, 1300972, 1781766, 1951458, 2276701, 2927187, 3563532, 3902916, 4553402, 5854374, 6830103, 9106804, 11708748, 13660206, 20490309, 27320412, 40980618, 81961236]

約数ペア:

[(1, 81961236), (2, 40980618), (3, 27320412), (4, 20490309), (6, 13660206), (7, 11708748), (9, 9106804), (12, 6830103), (14, 5854374), (18, 4553402), (21, 3902916), (23, 3563532), (28, 2927187), (36, 2276701), (42, 1951458), (46, 1781766), (63, 1300972), (69, 1187844), (79, 1037484), (84, 975729), (92, 890883), (126, 650486), (138, 593922), (158, 518742), (161, 509076), (179, 457884), (207, 395948), (237, 345828), (252, 325243), (276, 296961), (316, 259371), (322, 254538), (358, 228942), (414, 197974), (474, 172914), (483, 169692), (537, 152628), (553, 148212), (644, 127269), (711, 115276), (716, 114471), (828, 98987), (948, 86457), (966, 84846), (1074, 76314), (1106, 74106), (1253, 65412), (1422, 57638), (1449, 56564), (1611, 50876), (1659, 49404), (1817, 45108), (1932, 42423), (2148, 38157), (2212, 37053), (2506, 32706), (2844, 28819), (2898, 28282), (3222, 25438), (3318, 24702), (3634, 22554), (3759, 21804), (4117, 19908), (4977, 16468), (5012, 16353), (5451, 15036), (5796, 14141), (6444, 12719), (6636, 12351), (7268, 11277), (7518, 10902), (8234, 9954)]