398901412

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{8629}}^1$

素因数の和:8780

約数の個数: 48

約数和(自身を含む): 866037760

約数和(自身を除く): 467136348

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 127, 182, 254, 364, 508, 889, 1651, 1778, 3302, 3556, 6604, 8629, 11557, 17258, 23114, 34516, 46228, 60403, 112177, 120806, 224354, 241612, 448708, 785239, 1095883, 1570478, 2191766, 3140956, 4383532, 7671181, 14246479, 15342362, 28492958, 30684724, 56985916, 99725353, 199450706, 398901412]

約数ペア:

[(1, 398901412), (2, 199450706), (4, 99725353), (7, 56985916), (13, 30684724), (14, 28492958), (26, 15342362), (28, 14246479), (52, 7671181), (91, 4383532), (127, 3140956), (182, 2191766), (254, 1570478), (364, 1095883), (508, 785239), (889, 448708), (1651, 241612), (1778, 224354), (3302, 120806), (3556, 112177), (6604, 60403), (8629, 46228), (11557, 34516), (17258, 23114)]