20500164

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 60540480

約数和(自身を除く): 40040316

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 34, 36, 38, 41, 43, 51, 57, 68, 76, 82, 86, 102, 114, 123, 129, 153, 164, 171, 172, 204, 228, 246, 258, 306, 323, 342, 369, 387, 492, 516, 612, 646, 684, 697, 731, 738, 774, 779, 817, 969, 1292, 1394, 1462, 1476, 1548, 1558, 1634, 1763, 1938, 2091, 2193, 2337, 2451, 2788, 2907, 2924, 3116, 3268, 3526, 3876, 4182, 4386, 4674, 4902, 5289, 5814, 6273, 6579, 7011, 7052, 7353, 8364, 8772, 9348, 9804, 10578, 11628, 12546, 13158, 13243, 13889, 14022, 14706, 15867, 21156, 25092, 26316, 26486, 27778, 28044, 29412, 29971, 31734, 33497, 39729, 41667, 52972, 55556, 59942, 63468, 66994, 79458, 83334, 89913, 100491, 119187, 119884, 125001, 133988, 158916, 166668, 179826, 200982, 238374, 250002, 269739, 301473, 359652, 401964, 476748, 500004, 539478, 569449, 602946, 1078956, 1138898, 1205892, 1708347, 2277796, 3416694, 5125041, 6833388, 10250082, 20500164]

約数ペア:

[(1, 20500164), (2, 10250082), (3, 6833388), (4, 5125041), (6, 3416694), (9, 2277796), (12, 1708347), (17, 1205892), (18, 1138898), (19, 1078956), (34, 602946), (36, 569449), (38, 539478), (41, 500004), (43, 476748), (51, 401964), (57, 359652), (68, 301473), (76, 269739), (82, 250002), (86, 238374), (102, 200982), (114, 179826), (123, 166668), (129, 158916), (153, 133988), (164, 125001), (171, 119884), (172, 119187), (204, 100491), (228, 89913), (246, 83334), (258, 79458), (306, 66994), (323, 63468), (342, 59942), (369, 55556), (387, 52972), (492, 41667), (516, 39729), (612, 33497), (646, 31734), (684, 29971), (697, 29412), (731, 28044), (738, 27778), (774, 26486), (779, 26316), (817, 25092), (969, 21156), (1292, 15867), (1394, 14706), (1462, 14022), (1476, 13889), (1548, 13243), (1558, 13158), (1634, 12546), (1763, 11628), (1938, 10578), (2091, 9804), (2193, 9348), (2337, 8772), (2451, 8364), (2788, 7353), (2907, 7052), (2924, 7011), (3116, 6579), (3268, 6273), (3526, 5814), (3876, 5289), (4182, 4902), (4386, 4674)]