28555120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{877}}^1$

素因数の和:938

約数の個数: 80

約数和(自身を含む): 74468448

約数和(自身を除く): 45913328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 44, 55, 74, 80, 88, 110, 148, 176, 185, 220, 296, 370, 407, 440, 592, 740, 814, 877, 880, 1480, 1628, 1754, 2035, 2960, 3256, 3508, 4070, 4385, 6512, 7016, 8140, 8770, 9647, 14032, 16280, 17540, 19294, 32449, 32560, 35080, 38588, 48235, 64898, 70160, 77176, 96470, 129796, 154352, 162245, 192940, 259592, 324490, 356939, 385880, 519184, 648980, 713878, 771760, 1297960, 1427756, 1784695, 2595920, 2855512, 3569390, 5711024, 7138780, 14277560, 28555120]

約数ペア:

[(1, 28555120), (2, 14277560), (4, 7138780), (5, 5711024), (8, 3569390), (10, 2855512), (11, 2595920), (16, 1784695), (20, 1427756), (22, 1297960), (37, 771760), (40, 713878), (44, 648980), (55, 519184), (74, 385880), (80, 356939), (88, 324490), (110, 259592), (148, 192940), (176, 162245), (185, 154352), (220, 129796), (296, 96470), (370, 77176), (407, 70160), (440, 64898), (592, 48235), (740, 38588), (814, 35080), (877, 32560), (880, 32449), (1480, 19294), (1628, 17540), (1754, 16280), (2035, 14032), (2960, 9647), (3256, 8770), (3508, 8140), (4070, 7016), (4385, 6512)]