20209696

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:174

約数の個数: 72

約数和(自身を含む): 44686404

約数和(自身を除く): 24476708

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 74, 101, 104, 148, 169, 202, 208, 296, 338, 404, 416, 481, 592, 676, 808, 962, 1184, 1313, 1352, 1616, 1924, 2626, 2704, 3232, 3737, 3848, 5252, 5408, 6253, 7474, 7696, 10504, 12506, 14948, 15392, 17069, 21008, 25012, 29896, 34138, 42016, 48581, 50024, 59792, 68276, 97162, 100048, 119584, 136552, 194324, 200096, 273104, 388648, 546208, 631553, 777296, 1263106, 1554592, 2526212, 5052424, 10104848, 20209696]

約数ペア:

[(1, 20209696), (2, 10104848), (4, 5052424), (8, 2526212), (13, 1554592), (16, 1263106), (26, 777296), (32, 631553), (37, 546208), (52, 388648), (74, 273104), (101, 200096), (104, 194324), (148, 136552), (169, 119584), (202, 100048), (208, 97162), (296, 68276), (338, 59792), (404, 50024), (416, 48581), (481, 42016), (592, 34138), (676, 29896), (808, 25012), (962, 21008), (1184, 17069), (1313, 15392), (1352, 14948), (1616, 12506), (1924, 10504), (2626, 7696), (2704, 7474), (3232, 6253), (3737, 5408), (3848, 5252)]