78710884

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 170819712

約数和(自身を除く): 92108828

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 71, 119, 137, 142, 238, 274, 284, 289, 476, 497, 548, 578, 959, 994, 1156, 1207, 1918, 1988, 2023, 2329, 2414, 3836, 4046, 4658, 4828, 8092, 8449, 9316, 9727, 16303, 16898, 19454, 20519, 32606, 33796, 38908, 39593, 41038, 65212, 68089, 79186, 82076, 136178, 143633, 158372, 165359, 272356, 277151, 287266, 330718, 554302, 574532, 661436, 1108604, 1157513, 2315026, 2811103, 4630052, 5622206, 11244412, 19677721, 39355442, 78710884]

約数ペア:

[(1, 78710884), (2, 39355442), (4, 19677721), (7, 11244412), (14, 5622206), (17, 4630052), (28, 2811103), (34, 2315026), (68, 1157513), (71, 1108604), (119, 661436), (137, 574532), (142, 554302), (238, 330718), (274, 287266), (284, 277151), (289, 272356), (476, 165359), (497, 158372), (548, 143633), (578, 136178), (959, 82076), (994, 79186), (1156, 68089), (1207, 65212), (1918, 41038), (1988, 39593), (2023, 38908), (2329, 33796), (2414, 32606), (3836, 20519), (4046, 19454), (4658, 16898), (4828, 16303), (8092, 9727), (8449, 9316)]