80285640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1531}}^1$

素因数の和:1587

約数の個数: 128

約数和(自身を含む): 264729600

約数和(自身を除く): 184443960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 23, 24, 30, 38, 40, 46, 57, 60, 69, 76, 92, 95, 114, 115, 120, 138, 152, 184, 190, 228, 230, 276, 285, 345, 380, 437, 456, 460, 552, 570, 690, 760, 874, 920, 1140, 1311, 1380, 1531, 1748, 2185, 2280, 2622, 2760, 3062, 3496, 4370, 4593, 5244, 6124, 6555, 7655, 8740, 9186, 10488, 12248, 13110, 15310, 17480, 18372, 22965, 26220, 29089, 30620, 35213, 36744, 45930, 52440, 58178, 61240, 70426, 87267, 91860, 105639, 116356, 140852, 145445, 174534, 176065, 183720, 211278, 232712, 281704, 290890, 349068, 352130, 422556, 436335, 528195, 581780, 669047, 698136, 704260, 845112, 872670, 1056390, 1163560, 1338094, 1408520, 1745340, 2007141, 2112780, 2676188, 3345235, 3490680, 4014282, 4225560, 5352376, 6690470, 8028564, 10035705, 13380940, 16057128, 20071410, 26761880, 40142820, 80285640]

約数ペア:

[(1, 80285640), (2, 40142820), (3, 26761880), (4, 20071410), (5, 16057128), (6, 13380940), (8, 10035705), (10, 8028564), (12, 6690470), (15, 5352376), (19, 4225560), (20, 4014282), (23, 3490680), (24, 3345235), (30, 2676188), (38, 2112780), (40, 2007141), (46, 1745340), (57, 1408520), (60, 1338094), (69, 1163560), (76, 1056390), (92, 872670), (95, 845112), (114, 704260), (115, 698136), (120, 669047), (138, 581780), (152, 528195), (184, 436335), (190, 422556), (228, 352130), (230, 349068), (276, 290890), (285, 281704), (345, 232712), (380, 211278), (437, 183720), (456, 176065), (460, 174534), (552, 145445), (570, 140852), (690, 116356), (760, 105639), (874, 91860), (920, 87267), (1140, 70426), (1311, 61240), (1380, 58178), (1531, 52440), (1748, 45930), (2185, 36744), (2280, 35213), (2622, 30620), (2760, 29089), (3062, 26220), (3496, 22965), (4370, 18372), (4593, 17480), (5244, 15310), (6124, 13110), (6555, 12248), (7655, 10488), (8740, 9186)]