19405560

素因数分解:

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

素因数の和:205

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 42802440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 79, 89, 92, 115, 120, 138, 158, 178, 184, 230, 237, 267, 276, 316, 345, 356, 395, 445, 460, 474, 534, 552, 632, 690, 712, 790, 890, 920, 948, 1068, 1185, 1335, 1380, 1580, 1780, 1817, 1896, 2047, 2136, 2370, 2670, 2760, 3160, 3560, 3634, 4094, 4740, 5340, 5451, 6141, 7031, 7268, 8188, 9085, 9480, 10235, 10680, 10902, 12282, 14062, 14536, 16376, 18170, 20470, 21093, 21804, 24564, 27255, 28124, 30705, 35155, 36340, 40940, 42186, 43608, 49128, 54510, 56248, 61410, 70310, 72680, 81880, 84372, 105465, 109020, 122820, 140620, 161713, 168744, 210930, 218040, 245640, 281240, 323426, 421860, 485139, 646852, 808565, 843720, 970278, 1293704, 1617130, 1940556, 2425695, 3234260, 3881112, 4851390, 6468520, 9702780, 19405560]

約数ペア:

[(1, 19405560), (2, 9702780), (3, 6468520), (4, 4851390), (5, 3881112), (6, 3234260), (8, 2425695), (10, 1940556), (12, 1617130), (15, 1293704), (20, 970278), (23, 843720), (24, 808565), (30, 646852), (40, 485139), (46, 421860), (60, 323426), (69, 281240), (79, 245640), (89, 218040), (92, 210930), (115, 168744), (120, 161713), (138, 140620), (158, 122820), (178, 109020), (184, 105465), (230, 84372), (237, 81880), (267, 72680), (276, 70310), (316, 61410), (345, 56248), (356, 54510), (395, 49128), (445, 43608), (460, 42186), (474, 40940), (534, 36340), (552, 35155), (632, 30705), (690, 28124), (712, 27255), (790, 24564), (890, 21804), (920, 21093), (948, 20470), (1068, 18170), (1185, 16376), (1335, 14536), (1380, 14062), (1580, 12282), (1780, 10902), (1817, 10680), (1896, 10235), (2047, 9480), (2136, 9085), (2370, 8188), (2670, 7268), (2760, 7031), (3160, 6141), (3560, 5451), (3634, 5340), (4094, 4740)]