681720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:69

約数の個数: 128

約数和(自身を含む): 2419200

約数和(自身を除く): 1737480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 23, 24, 26, 30, 38, 39, 40, 46, 52, 57, 60, 65, 69, 76, 78, 92, 95, 104, 114, 115, 120, 130, 138, 152, 156, 184, 190, 195, 228, 230, 247, 260, 276, 285, 299, 312, 345, 380, 390, 437, 456, 460, 494, 520, 552, 570, 598, 690, 741, 760, 780, 874, 897, 920, 988, 1140, 1196, 1235, 1311, 1380, 1482, 1495, 1560, 1748, 1794, 1976, 2185, 2280, 2392, 2470, 2622, 2760, 2964, 2990, 3496, 3588, 3705, 4370, 4485, 4940, 5244, 5681, 5928, 5980, 6555, 7176, 7410, 8740, 8970, 9880, 10488, 11362, 11960, 13110, 14820, 17043, 17480, 17940, 22724, 26220, 28405, 29640, 34086, 35880, 45448, 52440, 56810, 68172, 85215, 113620, 136344, 170430, 227240, 340860, 681720]

約数ペア:

[(1, 681720), (2, 340860), (3, 227240), (4, 170430), (5, 136344), (6, 113620), (8, 85215), (10, 68172), (12, 56810), (13, 52440), (15, 45448), (19, 35880), (20, 34086), (23, 29640), (24, 28405), (26, 26220), (30, 22724), (38, 17940), (39, 17480), (40, 17043), (46, 14820), (52, 13110), (57, 11960), (60, 11362), (65, 10488), (69, 9880), (76, 8970), (78, 8740), (92, 7410), (95, 7176), (104, 6555), (114, 5980), (115, 5928), (120, 5681), (130, 5244), (138, 4940), (152, 4485), (156, 4370), (184, 3705), (190, 3588), (195, 3496), (228, 2990), (230, 2964), (247, 2760), (260, 2622), (276, 2470), (285, 2392), (299, 2280), (312, 2185), (345, 1976), (380, 1794), (390, 1748), (437, 1560), (456, 1495), (460, 1482), (494, 1380), (520, 1311), (552, 1235), (570, 1196), (598, 1140), (690, 988), (741, 920), (760, 897), (780, 874)]