18875640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{977}}^1$

素因数の和:1021

約数の個数: 128

約数和(自身を含む): 67599360

約数和(自身を除く): 48723720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 977, 1288, 1380, 1610, 1932, 1954, 2415, 2760, 2931, 3220, 3864, 3908, 4830, 4885, 5862, 6440, 6839, 7816, 9660, 9770, 11724, 13678, 14655, 19320, 19540, 20517, 22471, 23448, 27356, 29310, 34195, 39080, 41034, 44942, 54712, 58620, 67413, 68390, 82068, 89884, 102585, 112355, 117240, 134826, 136780, 157297, 164136, 179768, 205170, 224710, 269652, 273560, 314594, 337065, 410340, 449420, 471891, 539304, 629188, 674130, 786485, 820680, 898840, 943782, 1258376, 1348260, 1572970, 1887564, 2359455, 2696520, 3145940, 3775128, 4718910, 6291880, 9437820, 18875640]

約数ペア:

[(1, 18875640), (2, 9437820), (3, 6291880), (4, 4718910), (5, 3775128), (6, 3145940), (7, 2696520), (8, 2359455), (10, 1887564), (12, 1572970), (14, 1348260), (15, 1258376), (20, 943782), (21, 898840), (23, 820680), (24, 786485), (28, 674130), (30, 629188), (35, 539304), (40, 471891), (42, 449420), (46, 410340), (56, 337065), (60, 314594), (69, 273560), (70, 269652), (84, 224710), (92, 205170), (105, 179768), (115, 164136), (120, 157297), (138, 136780), (140, 134826), (161, 117240), (168, 112355), (184, 102585), (210, 89884), (230, 82068), (276, 68390), (280, 67413), (322, 58620), (345, 54712), (420, 44942), (460, 41034), (483, 39080), (552, 34195), (644, 29310), (690, 27356), (805, 23448), (840, 22471), (920, 20517), (966, 19540), (977, 19320), (1288, 14655), (1380, 13678), (1610, 11724), (1932, 9770), (1954, 9660), (2415, 7816), (2760, 6839), (2931, 6440), (3220, 5862), (3864, 4885), (3908, 4830)]