1515216760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:389

約数の個数: 128

約数和(自身を含む): 3628800000

約数和(自身を除く): 2113583240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 59, 62, 118, 124, 139, 149, 155, 236, 248, 278, 295, 298, 310, 472, 556, 590, 596, 620, 695, 745, 1112, 1180, 1192, 1240, 1390, 1490, 1829, 2360, 2780, 2980, 3658, 4309, 4619, 5560, 5960, 7316, 8201, 8618, 8791, 9145, 9238, 14632, 16402, 17236, 17582, 18290, 18476, 20711, 21545, 23095, 32804, 34472, 35164, 36580, 36952, 41005, 41422, 43090, 43955, 46190, 65608, 70328, 73160, 82010, 82844, 86180, 87910, 92380, 103555, 164020, 165688, 172360, 175820, 184760, 207110, 254231, 272521, 328040, 351640, 414220, 508462, 545042, 642041, 828440, 1016924, 1090084, 1221949, 1271155, 1284082, 1362605, 2033848, 2180168, 2443898, 2542310, 2568164, 2725210, 3210205, 4887796, 5084620, 5136328, 5450420, 6109745, 6420410, 9775592, 10169240, 10900840, 12219490, 12840820, 24438980, 25681640, 37880419, 48877960, 75760838, 151521676, 189402095, 303043352, 378804190, 757608380, 1515216760]

約数ペア:

[(1, 1515216760), (2, 757608380), (4, 378804190), (5, 303043352), (8, 189402095), (10, 151521676), (20, 75760838), (31, 48877960), (40, 37880419), (59, 25681640), (62, 24438980), (118, 12840820), (124, 12219490), (139, 10900840), (149, 10169240), (155, 9775592), (236, 6420410), (248, 6109745), (278, 5450420), (295, 5136328), (298, 5084620), (310, 4887796), (472, 3210205), (556, 2725210), (590, 2568164), (596, 2542310), (620, 2443898), (695, 2180168), (745, 2033848), (1112, 1362605), (1180, 1284082), (1192, 1271155), (1240, 1221949), (1390, 1090084), (1490, 1016924), (1829, 828440), (2360, 642041), (2780, 545042), (2980, 508462), (3658, 414220), (4309, 351640), (4619, 328040), (5560, 272521), (5960, 254231), (7316, 207110), (8201, 184760), (8618, 175820), (8791, 172360), (9145, 165688), (9238, 164020), (14632, 103555), (16402, 92380), (17236, 87910), (17582, 86180), (18290, 82844), (18476, 82010), (20711, 73160), (21545, 70328), (23095, 65608), (32804, 46190), (34472, 43955), (35164, 43090), (36580, 41422), (36952, 41005)]