28709520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:789

約数の個数: 160

約数和(自身を含む): 106278912

約数和(自身を除く): 77569392

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 552, 560, 644, 690, 743, 805, 840, 920, 966, 1104, 1288, 1380, 1486, 1610, 1680, 1840, 1932, 2229, 2415, 2576, 2760, 2972, 3220, 3715, 3864, 4458, 4830, 5201, 5520, 5944, 6440, 7430, 7728, 8916, 9660, 10402, 11145, 11888, 12880, 14860, 15603, 17089, 17832, 19320, 20804, 22290, 26005, 29720, 31206, 34178, 35664, 38640, 41608, 44580, 51267, 52010, 59440, 62412, 68356, 78015, 83216, 85445, 89160, 102534, 104020, 119623, 124824, 136712, 156030, 170890, 178320, 205068, 208040, 239246, 249648, 256335, 273424, 312060, 341780, 358869, 410136, 416080, 478492, 512670, 598115, 624120, 683560, 717738, 820272, 956984, 1025340, 1196230, 1248240, 1367120, 1435476, 1794345, 1913968, 2050680, 2392460, 2870952, 3588690, 4101360, 4784920, 5741904, 7177380, 9569840, 14354760, 28709520]

約数ペア:

[(1, 28709520), (2, 14354760), (3, 9569840), (4, 7177380), (5, 5741904), (6, 4784920), (7, 4101360), (8, 3588690), (10, 2870952), (12, 2392460), (14, 2050680), (15, 1913968), (16, 1794345), (20, 1435476), (21, 1367120), (23, 1248240), (24, 1196230), (28, 1025340), (30, 956984), (35, 820272), (40, 717738), (42, 683560), (46, 624120), (48, 598115), (56, 512670), (60, 478492), (69, 416080), (70, 410136), (80, 358869), (84, 341780), (92, 312060), (105, 273424), (112, 256335), (115, 249648), (120, 239246), (138, 208040), (140, 205068), (161, 178320), (168, 170890), (184, 156030), (210, 136712), (230, 124824), (240, 119623), (276, 104020), (280, 102534), (322, 89160), (336, 85445), (345, 83216), (368, 78015), (420, 68356), (460, 62412), (483, 59440), (552, 52010), (560, 51267), (644, 44580), (690, 41608), (743, 38640), (805, 35664), (840, 34178), (920, 31206), (966, 29720), (1104, 26005), (1288, 22290), (1380, 20804), (1486, 19320), (1610, 17832), (1680, 17089), (1840, 15603), (1932, 14860), (2229, 12880), (2415, 11888), (2576, 11145), (2760, 10402), (2972, 9660), (3220, 8916), (3715, 7728), (3864, 7430), (4458, 6440), (4830, 5944), (5201, 5520)]