31259760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:855

約数の個数: 160

約数和(自身を含む): 115706880

約数和(自身を除く): 84447120

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, 805, 809, 840, 920, 966, 1104, 1288, 1380, 1610, 1618, 1680, 1840, 1932, 2415, 2427, 2576, 2760, 3220, 3236, 3864, 4045, 4830, 4854, 5520, 5663, 6440, 6472, 7728, 8090, 9660, 9708, 11326, 12135, 12880, 12944, 16180, 16989, 18607, 19320, 19416, 22652, 24270, 28315, 32360, 33978, 37214, 38640, 38832, 45304, 48540, 55821, 56630, 64720, 67956, 74428, 84945, 90608, 93035, 97080, 111642, 113260, 130249, 135912, 148856, 169890, 186070, 194160, 223284, 226520, 260498, 271824, 279105, 297712, 339780, 372140, 390747, 446568, 453040, 520996, 558210, 651245, 679560, 744280, 781494, 893136, 1041992, 1116420, 1302490, 1359120, 1488560, 1562988, 1953735, 2083984, 2232840, 2604980, 3125976, 3907470, 4465680, 5209960, 6251952, 7814940, 10419920, 15629880, 31259760]

約数ペア:

[(1, 31259760), (2, 15629880), (3, 10419920), (4, 7814940), (5, 6251952), (6, 5209960), (7, 4465680), (8, 3907470), (10, 3125976), (12, 2604980), (14, 2232840), (15, 2083984), (16, 1953735), (20, 1562988), (21, 1488560), (23, 1359120), (24, 1302490), (28, 1116420), (30, 1041992), (35, 893136), (40, 781494), (42, 744280), (46, 679560), (48, 651245), (56, 558210), (60, 520996), (69, 453040), (70, 446568), (80, 390747), (84, 372140), (92, 339780), (105, 297712), (112, 279105), (115, 271824), (120, 260498), (138, 226520), (140, 223284), (161, 194160), (168, 186070), (184, 169890), (210, 148856), (230, 135912), (240, 130249), (276, 113260), (280, 111642), (322, 97080), (336, 93035), (345, 90608), (368, 84945), (420, 74428), (460, 67956), (483, 64720), (552, 56630), (560, 55821), (644, 48540), (690, 45304), (805, 38832), (809, 38640), (840, 37214), (920, 33978), (966, 32360), (1104, 28315), (1288, 24270), (1380, 22652), (1610, 19416), (1618, 19320), (1680, 18607), (1840, 16989), (1932, 16180), (2415, 12944), (2427, 12880), (2576, 12135), (2760, 11326), (3220, 9708), (3236, 9660), (3864, 8090), (4045, 7728), (4830, 6472), (4854, 6440), (5520, 5663)]