81776280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{523}}^1\times {\mathrm{1303}}^1$

素因数の和:1840

約数の個数: 64

約数和(自身を含む): 245986560

約数和(自身を除く): 164210280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 523, 1046, 1303, 1569, 2092, 2606, 2615, 3138, 3909, 4184, 5212, 5230, 6276, 6515, 7818, 7845, 10424, 10460, 12552, 13030, 15636, 15690, 19545, 20920, 26060, 31272, 31380, 39090, 52120, 62760, 78180, 156360, 681469, 1362938, 2044407, 2725876, 3407345, 4088814, 5451752, 6814690, 8177628, 10222035, 13629380, 16355256, 20444070, 27258760, 40888140, 81776280]

約数ペア:

[(1, 81776280), (2, 40888140), (3, 27258760), (4, 20444070), (5, 16355256), (6, 13629380), (8, 10222035), (10, 8177628), (12, 6814690), (15, 5451752), (20, 4088814), (24, 3407345), (30, 2725876), (40, 2044407), (60, 1362938), (120, 681469), (523, 156360), (1046, 78180), (1303, 62760), (1569, 52120), (2092, 39090), (2606, 31380), (2615, 31272), (3138, 26060), (3909, 20920), (4184, 19545), (5212, 15690), (5230, 15636), (6276, 13030), (6515, 12552), (7818, 10460), (7845, 10424)]