28857228

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 73341072

約数和(自身を除く): 44483844

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 53, 68, 102, 106, 157, 159, 204, 212, 289, 314, 318, 471, 578, 628, 636, 867, 901, 942, 1156, 1734, 1802, 1884, 2669, 2703, 3468, 3604, 5338, 5406, 8007, 8321, 10676, 10812, 15317, 16014, 16642, 24963, 30634, 32028, 33284, 45373, 45951, 49926, 61268, 90746, 91902, 99852, 136119, 141457, 181492, 183804, 272238, 282914, 424371, 544476, 565828, 848742, 1697484, 2404769, 4809538, 7214307, 9619076, 14428614, 28857228]

約数ペア:

[(1, 28857228), (2, 14428614), (3, 9619076), (4, 7214307), (6, 4809538), (12, 2404769), (17, 1697484), (34, 848742), (51, 565828), (53, 544476), (68, 424371), (102, 282914), (106, 272238), (157, 183804), (159, 181492), (204, 141457), (212, 136119), (289, 99852), (314, 91902), (318, 90746), (471, 61268), (578, 49926), (628, 45951), (636, 45373), (867, 33284), (901, 32028), (942, 30634), (1156, 24963), (1734, 16642), (1802, 16014), (1884, 15317), (2669, 10812), (2703, 10676), (3468, 8321), (3604, 8007), (5338, 5406)]