81812640

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1873}}^1$

素因数の和:1911

約数の個数: 192

約数和(自身を含む): 317350656

約数和(自身を除く): 235538016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 195, 208, 210, 224, 240, 260, 273, 280, 312, 336, 364, 390, 416, 420, 455, 480, 520, 546, 560, 624, 672, 728, 780, 840, 910, 1040, 1092, 1120, 1248, 1365, 1456, 1560, 1680, 1820, 1873, 2080, 2184, 2730, 2912, 3120, 3360, 3640, 3746, 4368, 5460, 5619, 6240, 7280, 7492, 8736, 9365, 10920, 11238, 13111, 14560, 14984, 18730, 21840, 22476, 24349, 26222, 28095, 29968, 37460, 39333, 43680, 44952, 48698, 52444, 56190, 59936, 65555, 73047, 74920, 78666, 89904, 97396, 104888, 112380, 121745, 131110, 146094, 149840, 157332, 170443, 179808, 194792, 196665, 209776, 224760, 243490, 262220, 292188, 299680, 314664, 340886, 365235, 389584, 393330, 419552, 449520, 486980, 511329, 524440, 584376, 629328, 681772, 730470, 779168, 786660, 852215, 899040, 973960, 1022658, 1048880, 1168752, 1258656, 1363544, 1460940, 1573320, 1704430, 1947920, 2045316, 2097760, 2337504, 2556645, 2727088, 2921880, 3146640, 3408860, 3895840, 4090632, 5113290, 5454176, 5843760, 6293280, 6817720, 8181264, 10226580, 11687520, 13635440, 16362528, 20453160, 27270880, 40906320, 81812640]

約数ペア:

[(1, 81812640), (2, 40906320), (3, 27270880), (4, 20453160), (5, 16362528), (6, 13635440), (7, 11687520), (8, 10226580), (10, 8181264), (12, 6817720), (13, 6293280), (14, 5843760), (15, 5454176), (16, 5113290), (20, 4090632), (21, 3895840), (24, 3408860), (26, 3146640), (28, 2921880), (30, 2727088), (32, 2556645), (35, 2337504), (39, 2097760), (40, 2045316), (42, 1947920), (48, 1704430), (52, 1573320), (56, 1460940), (60, 1363544), (65, 1258656), (70, 1168752), (78, 1048880), (80, 1022658), (84, 973960), (91, 899040), (96, 852215), (104, 786660), (105, 779168), (112, 730470), (120, 681772), (130, 629328), (140, 584376), (156, 524440), (160, 511329), (168, 486980), (182, 449520), (195, 419552), (208, 393330), (210, 389584), (224, 365235), (240, 340886), (260, 314664), (273, 299680), (280, 292188), (312, 262220), (336, 243490), (364, 224760), (390, 209776), (416, 196665), (420, 194792), (455, 179808), (480, 170443), (520, 157332), (546, 149840), (560, 146094), (624, 131110), (672, 121745), (728, 112380), (780, 104888), (840, 97396), (910, 89904), (1040, 78666), (1092, 74920), (1120, 73047), (1248, 65555), (1365, 59936), (1456, 56190), (1560, 52444), (1680, 48698), (1820, 44952), (1873, 43680), (2080, 39333), (2184, 37460), (2730, 29968), (2912, 28095), (3120, 26222), (3360, 24349), (3640, 22476), (3746, 21840), (4368, 18730), (5460, 14984), (5619, 14560), (6240, 13111), (7280, 11238), (7492, 10920), (8736, 9365)]