388978824

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:491

約数の個数: 128

約数和(自身を含む): 1092833280

約数和(自身を除く): 703854456

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 62, 78, 93, 104, 124, 131, 156, 186, 248, 262, 307, 312, 372, 393, 403, 524, 614, 744, 786, 806, 921, 1048, 1209, 1228, 1572, 1612, 1703, 1842, 2418, 2456, 3144, 3224, 3406, 3684, 3991, 4061, 4836, 5109, 6812, 7368, 7982, 8122, 9517, 9672, 10218, 11973, 12183, 13624, 15964, 16244, 19034, 20436, 23946, 24366, 28551, 31928, 32488, 38068, 40217, 40872, 47892, 48732, 52793, 57102, 76136, 80434, 95784, 97464, 105586, 114204, 120651, 123721, 158379, 160868, 211172, 228408, 241302, 247442, 316758, 321736, 371163, 422344, 482604, 494884, 522821, 633516, 742326, 965208, 989768, 1045642, 1246727, 1267032, 1484652, 1568463, 2091284, 2493454, 2969304, 3136926, 3740181, 4182568, 4986908, 6273852, 7480362, 9973816, 12547704, 14960724, 16207451, 29921448, 32414902, 48622353, 64829804, 97244706, 129659608, 194489412, 388978824]

約数ペア:

[(1, 388978824), (2, 194489412), (3, 129659608), (4, 97244706), (6, 64829804), (8, 48622353), (12, 32414902), (13, 29921448), (24, 16207451), (26, 14960724), (31, 12547704), (39, 9973816), (52, 7480362), (62, 6273852), (78, 4986908), (93, 4182568), (104, 3740181), (124, 3136926), (131, 2969304), (156, 2493454), (186, 2091284), (248, 1568463), (262, 1484652), (307, 1267032), (312, 1246727), (372, 1045642), (393, 989768), (403, 965208), (524, 742326), (614, 633516), (744, 522821), (786, 494884), (806, 482604), (921, 422344), (1048, 371163), (1209, 321736), (1228, 316758), (1572, 247442), (1612, 241302), (1703, 228408), (1842, 211172), (2418, 160868), (2456, 158379), (3144, 123721), (3224, 120651), (3406, 114204), (3684, 105586), (3991, 97464), (4061, 95784), (4836, 80434), (5109, 76136), (6812, 57102), (7368, 52793), (7982, 48732), (8122, 47892), (9517, 40872), (9672, 40217), (10218, 38068), (11973, 32488), (12183, 31928), (13624, 28551), (15964, 24366), (16244, 23946), (19034, 20436)]