81384992

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 72

約数和(自身を含む): 176393700

約数和(自身を除く): 95008708

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 101, 104, 149, 169, 202, 208, 298, 338, 404, 416, 596, 676, 808, 1192, 1313, 1352, 1616, 1937, 2384, 2626, 2704, 3232, 3874, 4768, 5252, 5408, 7748, 10504, 15049, 15496, 17069, 21008, 25181, 30098, 30992, 34138, 42016, 50362, 60196, 61984, 68276, 100724, 120392, 136552, 195637, 201448, 240784, 273104, 391274, 402896, 481568, 546208, 782548, 805792, 1565096, 2543281, 3130192, 5086562, 6260384, 10173124, 20346248, 40692496, 81384992]

約数ペア:

[(1, 81384992), (2, 40692496), (4, 20346248), (8, 10173124), (13, 6260384), (16, 5086562), (26, 3130192), (32, 2543281), (52, 1565096), (101, 805792), (104, 782548), (149, 546208), (169, 481568), (202, 402896), (208, 391274), (298, 273104), (338, 240784), (404, 201448), (416, 195637), (596, 136552), (676, 120392), (808, 100724), (1192, 68276), (1313, 61984), (1352, 60196), (1616, 50362), (1937, 42016), (2384, 34138), (2626, 30992), (2704, 30098), (3232, 25181), (3874, 21008), (4768, 17069), (5252, 15496), (5408, 15049), (7748, 10504)]