77421880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1$

素因数の和:2224

約数の個数: 64

約数和(自身を含む): 186105600

約数和(自身を除く): 108683720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 2153, 3596, 4306, 4495, 7192, 8612, 8990, 10765, 17224, 17980, 21530, 35960, 43060, 62437, 66743, 86120, 124874, 133486, 249748, 266972, 312185, 333715, 499496, 533944, 624370, 667430, 1248740, 1334860, 1935547, 2497480, 2669720, 3871094, 7742188, 9677735, 15484376, 19355470, 38710940, 77421880]

約数ペア:

[(1, 77421880), (2, 38710940), (4, 19355470), (5, 15484376), (8, 9677735), (10, 7742188), (20, 3871094), (29, 2669720), (31, 2497480), (40, 1935547), (58, 1334860), (62, 1248740), (116, 667430), (124, 624370), (145, 533944), (155, 499496), (232, 333715), (248, 312185), (290, 266972), (310, 249748), (580, 133486), (620, 124874), (899, 86120), (1160, 66743), (1240, 62437), (1798, 43060), (2153, 35960), (3596, 21530), (4306, 17980), (4495, 17224), (7192, 10765), (8612, 8990)]