72308320

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:453

約数の個数: 144

約数和(自身を含む): 207875808

約数和(自身を除く): 135567488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 224, 230, 245, 280, 322, 368, 392, 401, 460, 490, 560, 644, 736, 784, 802, 805, 920, 980, 1120, 1127, 1288, 1568, 1604, 1610, 1840, 1960, 2005, 2254, 2576, 2807, 3208, 3220, 3680, 3920, 4010, 4508, 5152, 5614, 5635, 6416, 6440, 7840, 8020, 9016, 9223, 11228, 11270, 12832, 12880, 14035, 16040, 18032, 18446, 19649, 22456, 22540, 25760, 28070, 32080, 36064, 36892, 39298, 44912, 45080, 46115, 56140, 64160, 64561, 73784, 78596, 89824, 90160, 92230, 98245, 112280, 129122, 147568, 157192, 180320, 184460, 196490, 224560, 258244, 295136, 314384, 322805, 368920, 392980, 449120, 451927, 516488, 628768, 645610, 737840, 785960, 903854, 1032976, 1291220, 1475680, 1571920, 1807708, 2065952, 2259635, 2582440, 3143840, 3615416, 4519270, 5164880, 7230832, 9038540, 10329760, 14461664, 18077080, 36154160, 72308320]

約数ペア:

[(1, 72308320), (2, 36154160), (4, 18077080), (5, 14461664), (7, 10329760), (8, 9038540), (10, 7230832), (14, 5164880), (16, 4519270), (20, 3615416), (23, 3143840), (28, 2582440), (32, 2259635), (35, 2065952), (40, 1807708), (46, 1571920), (49, 1475680), (56, 1291220), (70, 1032976), (80, 903854), (92, 785960), (98, 737840), (112, 645610), (115, 628768), (140, 516488), (160, 451927), (161, 449120), (184, 392980), (196, 368920), (224, 322805), (230, 314384), (245, 295136), (280, 258244), (322, 224560), (368, 196490), (392, 184460), (401, 180320), (460, 157192), (490, 147568), (560, 129122), (644, 112280), (736, 98245), (784, 92230), (802, 90160), (805, 89824), (920, 78596), (980, 73784), (1120, 64561), (1127, 64160), (1288, 56140), (1568, 46115), (1604, 45080), (1610, 44912), (1840, 39298), (1960, 36892), (2005, 36064), (2254, 32080), (2576, 28070), (2807, 25760), (3208, 22540), (3220, 22456), (3680, 19649), (3920, 18446), (4010, 18032), (4508, 16040), (5152, 14035), (5614, 12880), (5635, 12832), (6416, 11270), (6440, 11228), (7840, 9223), (8020, 9016)]