81222720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 224

約数和(自身を含む): 279684480

約数和(自身を除く): 198461760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 61, 64, 73, 76, 80, 95, 96, 114, 120, 122, 146, 152, 160, 183, 190, 192, 219, 228, 240, 244, 285, 292, 304, 305, 320, 365, 366, 380, 438, 456, 480, 488, 570, 584, 608, 610, 730, 732, 760, 876, 912, 915, 960, 976, 1095, 1140, 1159, 1168, 1216, 1220, 1387, 1460, 1464, 1520, 1752, 1824, 1830, 1952, 2190, 2280, 2318, 2336, 2440, 2774, 2920, 2928, 3040, 3477, 3504, 3648, 3660, 3904, 4161, 4380, 4453, 4560, 4636, 4672, 4880, 5548, 5795, 5840, 5856, 6080, 6935, 6954, 7008, 7320, 8322, 8760, 8906, 9120, 9272, 9760, 11096, 11590, 11680, 11712, 13359, 13870, 13908, 14016, 14640, 16644, 17385, 17520, 17812, 18240, 18544, 19520, 20805, 22192, 22265, 23180, 23360, 26718, 27740, 27816, 29280, 33288, 34770, 35040, 35624, 37088, 41610, 44384, 44530, 46360, 53436, 55480, 55632, 58560, 66576, 66795, 69540, 70080, 71248, 74176, 83220, 84607, 88768, 89060, 92720, 106872, 110960, 111264, 133152, 133590, 139080, 142496, 166440, 169214, 178120, 185440, 213744, 221920, 222528, 253821, 266304, 267180, 278160, 284992, 332880, 338428, 356240, 370880, 423035, 427488, 443840, 507642, 534360, 556320, 665760, 676856, 712480, 846070, 854976, 1015284, 1068720, 1112640, 1269105, 1331520, 1353712, 1424960, 1692140, 2030568, 2137440, 2538210, 2707424, 3384280, 4061136, 4274880, 5076420, 5414848, 6768560, 8122272, 10152840, 13537120, 16244544, 20305680, 27074240, 40611360, 81222720]

約数ペア:

[(1, 81222720), (2, 40611360), (3, 27074240), (4, 20305680), (5, 16244544), (6, 13537120), (8, 10152840), (10, 8122272), (12, 6768560), (15, 5414848), (16, 5076420), (19, 4274880), (20, 4061136), (24, 3384280), (30, 2707424), (32, 2538210), (38, 2137440), (40, 2030568), (48, 1692140), (57, 1424960), (60, 1353712), (61, 1331520), (64, 1269105), (73, 1112640), (76, 1068720), (80, 1015284), (95, 854976), (96, 846070), (114, 712480), (120, 676856), (122, 665760), (146, 556320), (152, 534360), (160, 507642), (183, 443840), (190, 427488), (192, 423035), (219, 370880), (228, 356240), (240, 338428), (244, 332880), (285, 284992), (292, 278160), (304, 267180), (305, 266304), (320, 253821), (365, 222528), (366, 221920), (380, 213744), (438, 185440), (456, 178120), (480, 169214), (488, 166440), (570, 142496), (584, 139080), (608, 133590), (610, 133152), (730, 111264), (732, 110960), (760, 106872), (876, 92720), (912, 89060), (915, 88768), (960, 84607), (976, 83220), (1095, 74176), (1140, 71248), (1159, 70080), (1168, 69540), (1216, 66795), (1220, 66576), (1387, 58560), (1460, 55632), (1464, 55480), (1520, 53436), (1752, 46360), (1824, 44530), (1830, 44384), (1952, 41610), (2190, 37088), (2280, 35624), (2318, 35040), (2336, 34770), (2440, 33288), (2774, 29280), (2920, 27816), (2928, 27740), (3040, 26718), (3477, 23360), (3504, 23180), (3648, 22265), (3660, 22192), (3904, 20805), (4161, 19520), (4380, 18544), (4453, 18240), (4560, 17812), (4636, 17520), (4672, 17385), (4880, 16644), (5548, 14640), (5795, 14016), (5840, 13908), (5856, 13870), (6080, 13359), (6935, 11712), (6954, 11680), (7008, 11590), (7320, 11096), (8322, 9760), (8760, 9272), (8906, 9120)]