138143980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1777}}^1$

素因数の和:1835

約数の個数: 72

約数和(自身を含む): 327976992

約数和(自身を除く): 189833012

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 169, 230, 260, 299, 338, 460, 598, 676, 845, 1196, 1495, 1690, 1777, 2990, 3380, 3554, 3887, 5980, 7108, 7774, 8885, 15548, 17770, 19435, 23101, 35540, 38870, 40871, 46202, 77740, 81742, 92404, 115505, 163484, 204355, 231010, 300313, 408710, 462020, 531323, 600626, 817420, 1062646, 1201252, 1501565, 2125292, 2656615, 3003130, 5313230, 6006260, 6907199, 10626460, 13814398, 27628796, 34535995, 69071990, 138143980]

約数ペア:

[(1, 138143980), (2, 69071990), (4, 34535995), (5, 27628796), (10, 13814398), (13, 10626460), (20, 6907199), (23, 6006260), (26, 5313230), (46, 3003130), (52, 2656615), (65, 2125292), (92, 1501565), (115, 1201252), (130, 1062646), (169, 817420), (230, 600626), (260, 531323), (299, 462020), (338, 408710), (460, 300313), (598, 231010), (676, 204355), (845, 163484), (1196, 115505), (1495, 92404), (1690, 81742), (1777, 77740), (2990, 46202), (3380, 40871), (3554, 38870), (3887, 35540), (5980, 23101), (7108, 19435), (7774, 17770), (8885, 15548)]