40402778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 73237920

約数和(自身を除く): 32835142

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 221, 247, 283, 289, 323, 442, 494, 566, 578, 646, 3679, 3757, 4199, 4811, 5377, 5491, 7358, 7514, 8398, 9622, 10754, 10982, 62543, 69901, 71383, 81787, 91409, 125086, 139802, 142766, 163574, 182818, 1063231, 1188317, 1553953, 2126462, 2376634, 3107906, 20201389, 40402778]

約数ペア:

[(1, 40402778), (2, 20201389), (13, 3107906), (17, 2376634), (19, 2126462), (26, 1553953), (34, 1188317), (38, 1063231), (221, 182818), (247, 163574), (283, 142766), (289, 139802), (323, 125086), (442, 91409), (494, 81787), (566, 71383), (578, 69901), (646, 62543), (3679, 10982), (3757, 10754), (4199, 9622), (4811, 8398), (5377, 7514), (5491, 7358)]