20081556

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 62112960

約数和(自身を除く): 42031404

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 17, 18, 19, 22, 33, 34, 36, 38, 44, 51, 57, 66, 68, 76, 99, 102, 114, 132, 153, 157, 171, 187, 198, 204, 209, 228, 306, 314, 323, 342, 374, 396, 418, 471, 561, 612, 627, 628, 646, 684, 748, 836, 942, 969, 1122, 1254, 1292, 1413, 1683, 1727, 1881, 1884, 1938, 2244, 2508, 2669, 2826, 2907, 2983, 3366, 3454, 3553, 3762, 3876, 5181, 5338, 5652, 5814, 5966, 6732, 6908, 7106, 7524, 8007, 8949, 10362, 10659, 10676, 11628, 11932, 14212, 15543, 16014, 17898, 20724, 21318, 24021, 26847, 29359, 31086, 31977, 32028, 32813, 35796, 42636, 48042, 50711, 53694, 58718, 62172, 63954, 65626, 88077, 96084, 98439, 101422, 107388, 117436, 127908, 131252, 152133, 176154, 196878, 202844, 264231, 295317, 304266, 352308, 393756, 456399, 528462, 557821, 590634, 608532, 912798, 1056924, 1115642, 1181268, 1673463, 1825596, 2231284, 3346926, 5020389, 6693852, 10040778, 20081556]

約数ペア:

[(1, 20081556), (2, 10040778), (3, 6693852), (4, 5020389), (6, 3346926), (9, 2231284), (11, 1825596), (12, 1673463), (17, 1181268), (18, 1115642), (19, 1056924), (22, 912798), (33, 608532), (34, 590634), (36, 557821), (38, 528462), (44, 456399), (51, 393756), (57, 352308), (66, 304266), (68, 295317), (76, 264231), (99, 202844), (102, 196878), (114, 176154), (132, 152133), (153, 131252), (157, 127908), (171, 117436), (187, 107388), (198, 101422), (204, 98439), (209, 96084), (228, 88077), (306, 65626), (314, 63954), (323, 62172), (342, 58718), (374, 53694), (396, 50711), (418, 48042), (471, 42636), (561, 35796), (612, 32813), (627, 32028), (628, 31977), (646, 31086), (684, 29359), (748, 26847), (836, 24021), (942, 21318), (969, 20724), (1122, 17898), (1254, 16014), (1292, 15543), (1413, 14212), (1683, 11932), (1727, 11628), (1881, 10676), (1884, 10659), (1938, 10362), (2244, 8949), (2508, 8007), (2669, 7524), (2826, 7106), (2907, 6908), (2983, 6732), (3366, 5966), (3454, 5814), (3553, 5652), (3762, 5338), (3876, 5181)]