31135560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:455

約数の個数: 128

約数和(自身を含む): 101088000

約数和(自身を除く): 69952440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 29, 30, 40, 46, 58, 60, 69, 87, 92, 115, 116, 120, 138, 145, 174, 184, 230, 232, 276, 290, 345, 348, 389, 435, 460, 552, 580, 667, 690, 696, 778, 870, 920, 1160, 1167, 1334, 1380, 1556, 1740, 1945, 2001, 2334, 2668, 2760, 3112, 3335, 3480, 3890, 4002, 4668, 5336, 5835, 6670, 7780, 8004, 8947, 9336, 10005, 11281, 11670, 13340, 15560, 16008, 17894, 20010, 22562, 23340, 26680, 26841, 33843, 35788, 40020, 44735, 45124, 46680, 53682, 56405, 67686, 71576, 80040, 89470, 90248, 107364, 112810, 134205, 135372, 169215, 178940, 214728, 225620, 259463, 268410, 270744, 338430, 357880, 451240, 518926, 536820, 676860, 778389, 1037852, 1073640, 1297315, 1353720, 1556778, 2075704, 2594630, 3113556, 3891945, 5189260, 6227112, 7783890, 10378520, 15567780, 31135560]

約数ペア:

[(1, 31135560), (2, 15567780), (3, 10378520), (4, 7783890), (5, 6227112), (6, 5189260), (8, 3891945), (10, 3113556), (12, 2594630), (15, 2075704), (20, 1556778), (23, 1353720), (24, 1297315), (29, 1073640), (30, 1037852), (40, 778389), (46, 676860), (58, 536820), (60, 518926), (69, 451240), (87, 357880), (92, 338430), (115, 270744), (116, 268410), (120, 259463), (138, 225620), (145, 214728), (174, 178940), (184, 169215), (230, 135372), (232, 134205), (276, 112810), (290, 107364), (345, 90248), (348, 89470), (389, 80040), (435, 71576), (460, 67686), (552, 56405), (580, 53682), (667, 46680), (690, 45124), (696, 44735), (778, 40020), (870, 35788), (920, 33843), (1160, 26841), (1167, 26680), (1334, 23340), (1380, 22562), (1556, 20010), (1740, 17894), (1945, 16008), (2001, 15560), (2334, 13340), (2668, 11670), (2760, 11281), (3112, 10005), (3335, 9336), (3480, 8947), (3890, 8004), (4002, 7780), (4668, 6670), (5336, 5835)]