68988920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1723}}^1$

素因数の和:1765

約数の個数: 128

約数和(自身を含む): 208535040

約数和(自身を除く): 139546120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1723, 1820, 2002, 2860, 3080, 3446, 3640, 4004, 5005, 5720, 6892, 8008, 8615, 10010, 12061, 13784, 17230, 18953, 20020, 22399, 24122, 34460, 37906, 40040, 44798, 48244, 60305, 68920, 75812, 89596, 94765, 96488, 111995, 120610, 132671, 151624, 156793, 179192, 189530, 223990, 241220, 246389, 265342, 313586, 379060, 447980, 482440, 492778, 530684, 627172, 663355, 758120, 783965, 895960, 985556, 1061368, 1231945, 1254344, 1326710, 1567930, 1724723, 1971112, 2463890, 2653420, 3135860, 3449446, 4927780, 5306840, 6271720, 6898892, 8623615, 9855560, 13797784, 17247230, 34494460, 68988920]

約数ペア:

[(1, 68988920), (2, 34494460), (4, 17247230), (5, 13797784), (7, 9855560), (8, 8623615), (10, 6898892), (11, 6271720), (13, 5306840), (14, 4927780), (20, 3449446), (22, 3135860), (26, 2653420), (28, 2463890), (35, 1971112), (40, 1724723), (44, 1567930), (52, 1326710), (55, 1254344), (56, 1231945), (65, 1061368), (70, 985556), (77, 895960), (88, 783965), (91, 758120), (104, 663355), (110, 627172), (130, 530684), (140, 492778), (143, 482440), (154, 447980), (182, 379060), (220, 313586), (260, 265342), (280, 246389), (286, 241220), (308, 223990), (364, 189530), (385, 179192), (440, 156793), (455, 151624), (520, 132671), (572, 120610), (616, 111995), (715, 96488), (728, 94765), (770, 89596), (910, 75812), (1001, 68920), (1144, 60305), (1430, 48244), (1540, 44798), (1723, 40040), (1820, 37906), (2002, 34460), (2860, 24122), (3080, 22399), (3446, 20020), (3640, 18953), (4004, 17230), (5005, 13784), (5720, 12061), (6892, 10010), (8008, 8615)]