20850228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 66253824

約数和(自身を除く): 45403596

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 31, 34, 36, 42, 51, 62, 63, 68, 84, 93, 102, 119, 124, 126, 153, 157, 186, 204, 217, 238, 252, 279, 306, 314, 357, 372, 434, 471, 476, 527, 558, 612, 628, 651, 714, 868, 942, 1054, 1071, 1099, 1116, 1302, 1413, 1428, 1581, 1884, 1953, 2108, 2142, 2198, 2604, 2669, 2826, 3162, 3297, 3689, 3906, 4284, 4396, 4743, 4867, 5338, 5652, 6324, 6594, 7378, 7812, 8007, 9486, 9734, 9891, 10676, 11067, 13188, 14601, 14756, 16014, 18683, 18972, 19468, 19782, 22134, 24021, 29202, 32028, 33201, 34069, 37366, 39564, 43803, 44268, 48042, 56049, 58404, 66402, 68138, 74732, 82739, 87606, 96084, 102207, 112098, 132804, 136276, 165478, 168147, 175212, 204414, 224196, 248217, 306621, 330956, 336294, 408828, 496434, 579173, 613242, 672588, 744651, 992868, 1158346, 1226484, 1489302, 1737519, 2316692, 2978604, 3475038, 5212557, 6950076, 10425114, 20850228]

約数ペア:

[(1, 20850228), (2, 10425114), (3, 6950076), (4, 5212557), (6, 3475038), (7, 2978604), (9, 2316692), (12, 1737519), (14, 1489302), (17, 1226484), (18, 1158346), (21, 992868), (28, 744651), (31, 672588), (34, 613242), (36, 579173), (42, 496434), (51, 408828), (62, 336294), (63, 330956), (68, 306621), (84, 248217), (93, 224196), (102, 204414), (119, 175212), (124, 168147), (126, 165478), (153, 136276), (157, 132804), (186, 112098), (204, 102207), (217, 96084), (238, 87606), (252, 82739), (279, 74732), (306, 68138), (314, 66402), (357, 58404), (372, 56049), (434, 48042), (471, 44268), (476, 43803), (527, 39564), (558, 37366), (612, 34069), (628, 33201), (651, 32028), (714, 29202), (868, 24021), (942, 22134), (1054, 19782), (1071, 19468), (1099, 18972), (1116, 18683), (1302, 16014), (1413, 14756), (1428, 14601), (1581, 13188), (1884, 11067), (1953, 10676), (2108, 9891), (2142, 9734), (2198, 9486), (2604, 8007), (2669, 7812), (2826, 7378), (3162, 6594), (3297, 6324), (3689, 5652), (3906, 5338), (4284, 4867), (4396, 4743)]