20018628

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 63073920

約数和(自身を除く): 43055292

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 37, 38, 42, 57, 63, 74, 76, 84, 111, 113, 114, 126, 133, 148, 171, 222, 226, 228, 252, 259, 266, 333, 339, 342, 399, 444, 452, 518, 532, 666, 678, 684, 703, 777, 791, 798, 1017, 1036, 1197, 1332, 1356, 1406, 1554, 1582, 1596, 2034, 2109, 2147, 2331, 2373, 2394, 2812, 3108, 3164, 4068, 4181, 4218, 4294, 4662, 4746, 4788, 4921, 6327, 6441, 7119, 8362, 8436, 8588, 9324, 9492, 9842, 12543, 12654, 12882, 14238, 14763, 15029, 16724, 19323, 19684, 25086, 25308, 25764, 28476, 29267, 29526, 30058, 37629, 38646, 44289, 45087, 50172, 58534, 59052, 60116, 75258, 77292, 79439, 87801, 88578, 90174, 117068, 135261, 150516, 158878, 175602, 177156, 180348, 238317, 263403, 270522, 317756, 351204, 476634, 526806, 541044, 556073, 714951, 953268, 1053612, 1112146, 1429902, 1668219, 2224292, 2859804, 3336438, 5004657, 6672876, 10009314, 20018628]

約数ペア:

[(1, 20018628), (2, 10009314), (3, 6672876), (4, 5004657), (6, 3336438), (7, 2859804), (9, 2224292), (12, 1668219), (14, 1429902), (18, 1112146), (19, 1053612), (21, 953268), (28, 714951), (36, 556073), (37, 541044), (38, 526806), (42, 476634), (57, 351204), (63, 317756), (74, 270522), (76, 263403), (84, 238317), (111, 180348), (113, 177156), (114, 175602), (126, 158878), (133, 150516), (148, 135261), (171, 117068), (222, 90174), (226, 88578), (228, 87801), (252, 79439), (259, 77292), (266, 75258), (333, 60116), (339, 59052), (342, 58534), (399, 50172), (444, 45087), (452, 44289), (518, 38646), (532, 37629), (666, 30058), (678, 29526), (684, 29267), (703, 28476), (777, 25764), (791, 25308), (798, 25086), (1017, 19684), (1036, 19323), (1197, 16724), (1332, 15029), (1356, 14763), (1406, 14238), (1554, 12882), (1582, 12654), (1596, 12543), (2034, 9842), (2109, 9492), (2147, 9324), (2331, 8588), (2373, 8436), (2394, 8362), (2812, 7119), (3108, 6441), (3164, 6327), (4068, 4921), (4181, 4788), (4218, 4746), (4294, 4662)]