81707760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{401}}^1$

素因数の和:703

約数の個数: 120

約数和(自身を含む): 276058224

約数和(自身を除く): 194350464

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 283, 360, 401, 566, 720, 802, 849, 1132, 1203, 1415, 1604, 1698, 2005, 2264, 2406, 2547, 2830, 3208, 3396, 3609, 4010, 4245, 4528, 4812, 5094, 5660, 6015, 6416, 6792, 7218, 8020, 8490, 9624, 10188, 11320, 12030, 12735, 13584, 14436, 16040, 16980, 18045, 19248, 20376, 22640, 24060, 25470, 28872, 32080, 33960, 36090, 40752, 48120, 50940, 57744, 67920, 72180, 96240, 101880, 113483, 144360, 203760, 226966, 288720, 340449, 453932, 567415, 680898, 907864, 1021347, 1134830, 1361796, 1702245, 1815728, 2042694, 2269660, 2723592, 3404490, 4085388, 4539320, 5106735, 5447184, 6808980, 8170776, 9078640, 10213470, 13617960, 16341552, 20426940, 27235920, 40853880, 81707760]

約数ペア:

[(1, 81707760), (2, 40853880), (3, 27235920), (4, 20426940), (5, 16341552), (6, 13617960), (8, 10213470), (9, 9078640), (10, 8170776), (12, 6808980), (15, 5447184), (16, 5106735), (18, 4539320), (20, 4085388), (24, 3404490), (30, 2723592), (36, 2269660), (40, 2042694), (45, 1815728), (48, 1702245), (60, 1361796), (72, 1134830), (80, 1021347), (90, 907864), (120, 680898), (144, 567415), (180, 453932), (240, 340449), (283, 288720), (360, 226966), (401, 203760), (566, 144360), (720, 113483), (802, 101880), (849, 96240), (1132, 72180), (1203, 67920), (1415, 57744), (1604, 50940), (1698, 48120), (2005, 40752), (2264, 36090), (2406, 33960), (2547, 32080), (2830, 28872), (3208, 25470), (3396, 24060), (3609, 22640), (4010, 20376), (4245, 19248), (4528, 18045), (4812, 16980), (5094, 16040), (5660, 14436), (6015, 13584), (6416, 12735), (6792, 12030), (7218, 11320), (8020, 10188), (8490, 9624)]