20177962840

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{27749}}^1$

素因数の和:27834

約数の個数: 128

約数和(自身を含む): 53946000000

約数和(自身を除く): 33768037160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 53, 56, 70, 98, 106, 140, 196, 212, 245, 265, 280, 343, 371, 392, 424, 490, 530, 686, 742, 980, 1060, 1372, 1484, 1715, 1855, 1960, 2120, 2597, 2744, 2968, 3430, 3710, 5194, 6860, 7420, 10388, 12985, 13720, 14840, 18179, 20776, 25970, 27749, 36358, 51940, 55498, 72716, 90895, 103880, 110996, 138745, 145432, 181790, 194243, 221992, 277490, 363580, 388486, 554980, 727160, 776972, 971215, 1109960, 1359701, 1470697, 1553944, 1942430, 2719402, 2941394, 3884860, 5438804, 5882788, 6798505, 7353485, 7769720, 9517907, 10294879, 10877608, 11765576, 13597010, 14706970, 19035814, 20589758, 27194020, 29413940, 38071628, 41179516, 47589535, 51474395, 54388040, 58827880, 72064153, 76143256, 82359032, 95179070, 102948790, 144128306, 190358140, 205897580, 288256612, 360320765, 380716280, 411795160, 504449071, 576513224, 720641530, 1008898142, 1441283060, 2017796284, 2522245355, 2882566120, 4035592568, 5044490710, 10088981420, 20177962840]

約数ペア:

[(1, 20177962840), (2, 10088981420), (4, 5044490710), (5, 4035592568), (7, 2882566120), (8, 2522245355), (10, 2017796284), (14, 1441283060), (20, 1008898142), (28, 720641530), (35, 576513224), (40, 504449071), (49, 411795160), (53, 380716280), (56, 360320765), (70, 288256612), (98, 205897580), (106, 190358140), (140, 144128306), (196, 102948790), (212, 95179070), (245, 82359032), (265, 76143256), (280, 72064153), (343, 58827880), (371, 54388040), (392, 51474395), (424, 47589535), (490, 41179516), (530, 38071628), (686, 29413940), (742, 27194020), (980, 20589758), (1060, 19035814), (1372, 14706970), (1484, 13597010), (1715, 11765576), (1855, 10877608), (1960, 10294879), (2120, 9517907), (2597, 7769720), (2744, 7353485), (2968, 6798505), (3430, 5882788), (3710, 5438804), (5194, 3884860), (6860, 2941394), (7420, 2719402), (10388, 1942430), (12985, 1553944), (13720, 1470697), (14840, 1359701), (18179, 1109960), (20776, 971215), (25970, 776972), (27749, 727160), (36358, 554980), (51940, 388486), (55498, 363580), (72716, 277490), (90895, 221992), (103880, 194243), (110996, 181790), (138745, 145432)]