71153720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:213

約数の個数: 128

約数和(自身を含む): 186624000

約数和(自身を除く): 115470280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 79, 88, 89, 92, 110, 115, 158, 178, 184, 220, 230, 253, 316, 356, 395, 440, 445, 460, 506, 632, 712, 790, 869, 890, 920, 979, 1012, 1265, 1580, 1738, 1780, 1817, 1958, 2024, 2047, 2530, 3160, 3476, 3560, 3634, 3916, 4094, 4345, 4895, 5060, 6952, 7031, 7268, 7832, 8188, 8690, 9085, 9790, 10120, 10235, 14062, 14536, 16376, 17380, 18170, 19580, 19987, 20470, 22517, 28124, 34760, 35155, 36340, 39160, 39974, 40940, 45034, 56248, 70310, 72680, 77341, 79948, 81880, 90068, 99935, 112585, 140620, 154682, 159896, 161713, 180136, 199870, 225170, 281240, 309364, 323426, 386705, 399740, 450340, 618728, 646852, 773410, 799480, 808565, 900680, 1293704, 1546820, 1617130, 1778843, 3093640, 3234260, 3557686, 6468520, 7115372, 8894215, 14230744, 17788430, 35576860, 71153720]

約数ペア:

[(1, 71153720), (2, 35576860), (4, 17788430), (5, 14230744), (8, 8894215), (10, 7115372), (11, 6468520), (20, 3557686), (22, 3234260), (23, 3093640), (40, 1778843), (44, 1617130), (46, 1546820), (55, 1293704), (79, 900680), (88, 808565), (89, 799480), (92, 773410), (110, 646852), (115, 618728), (158, 450340), (178, 399740), (184, 386705), (220, 323426), (230, 309364), (253, 281240), (316, 225170), (356, 199870), (395, 180136), (440, 161713), (445, 159896), (460, 154682), (506, 140620), (632, 112585), (712, 99935), (790, 90068), (869, 81880), (890, 79948), (920, 77341), (979, 72680), (1012, 70310), (1265, 56248), (1580, 45034), (1738, 40940), (1780, 39974), (1817, 39160), (1958, 36340), (2024, 35155), (2047, 34760), (2530, 28124), (3160, 22517), (3476, 20470), (3560, 19987), (3634, 19580), (3916, 18170), (4094, 17380), (4345, 16376), (4895, 14536), (5060, 14062), (6952, 10235), (7031, 10120), (7268, 9790), (7832, 9085), (8188, 8690)]