138780978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2851}}^1$

素因数の和:2943

約数の個数: 64

約数和(自身を含む): 339502080

約数和(自身を除く): 200721102

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 61, 114, 122, 133, 183, 266, 366, 399, 427, 798, 854, 1159, 1281, 2318, 2562, 2851, 3477, 5702, 6954, 8113, 8553, 16226, 17106, 19957, 24339, 39914, 48678, 54169, 59871, 108338, 119742, 162507, 173911, 325014, 347822, 379183, 521733, 758366, 1043466, 1137549, 1217377, 2275098, 2434754, 3304309, 3652131, 6608618, 7304262, 9912927, 19825854, 23130163, 46260326, 69390489, 138780978]

約数ペア:

[(1, 138780978), (2, 69390489), (3, 46260326), (6, 23130163), (7, 19825854), (14, 9912927), (19, 7304262), (21, 6608618), (38, 3652131), (42, 3304309), (57, 2434754), (61, 2275098), (114, 1217377), (122, 1137549), (133, 1043466), (183, 758366), (266, 521733), (366, 379183), (399, 347822), (427, 325014), (798, 173911), (854, 162507), (1159, 119742), (1281, 108338), (2318, 59871), (2562, 54169), (2851, 48678), (3477, 39914), (5702, 24339), (6954, 19957), (8113, 17106), (8553, 16226)]