81091560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2671}}^1$

素因数の和:2719

約数の個数: 128

約数和(自身を含む): 277032960

約数和(自身を除く): 195941400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 660, 690, 759, 920, 1012, 1265, 1320, 1380, 1518, 2024, 2530, 2671, 2760, 3036, 3795, 5060, 5342, 6072, 7590, 8013, 10120, 10684, 13355, 15180, 16026, 21368, 26710, 29381, 30360, 32052, 40065, 53420, 58762, 61433, 64104, 80130, 88143, 106840, 117524, 122866, 146905, 160260, 176286, 184299, 235048, 245732, 293810, 307165, 320520, 352572, 368598, 440715, 491464, 587620, 614330, 675763, 705144, 737196, 881430, 921495, 1175240, 1228660, 1351526, 1474392, 1762860, 1842990, 2027289, 2457320, 2703052, 3378815, 3525720, 3685980, 4054578, 5406104, 6757630, 7371960, 8109156, 10136445, 13515260, 16218312, 20272890, 27030520, 40545780, 81091560]

約数ペア:

[(1, 81091560), (2, 40545780), (3, 27030520), (4, 20272890), (5, 16218312), (6, 13515260), (8, 10136445), (10, 8109156), (11, 7371960), (12, 6757630), (15, 5406104), (20, 4054578), (22, 3685980), (23, 3525720), (24, 3378815), (30, 2703052), (33, 2457320), (40, 2027289), (44, 1842990), (46, 1762860), (55, 1474392), (60, 1351526), (66, 1228660), (69, 1175240), (88, 921495), (92, 881430), (110, 737196), (115, 705144), (120, 675763), (132, 614330), (138, 587620), (165, 491464), (184, 440715), (220, 368598), (230, 352572), (253, 320520), (264, 307165), (276, 293810), (330, 245732), (345, 235048), (440, 184299), (460, 176286), (506, 160260), (552, 146905), (660, 122866), (690, 117524), (759, 106840), (920, 88143), (1012, 80130), (1265, 64104), (1320, 61433), (1380, 58762), (1518, 53420), (2024, 40065), (2530, 32052), (2671, 30360), (2760, 29381), (3036, 26710), (3795, 21368), (5060, 16026), (5342, 15180), (6072, 13355), (7590, 10684), (8013, 10120)]