81972700

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:331

約数の個数: 72

約数和(自身を含む): 184488192

約数和(自身を除く): 102515492

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 107, 163, 188, 214, 235, 326, 428, 470, 535, 652, 815, 940, 1070, 1175, 1630, 2140, 2350, 2675, 3260, 4075, 4700, 5029, 5350, 7661, 8150, 10058, 10700, 15322, 16300, 17441, 20116, 25145, 30644, 34882, 38305, 50290, 69764, 76610, 87205, 100580, 125725, 153220, 174410, 191525, 251450, 348820, 383050, 436025, 502900, 766100, 819727, 872050, 1639454, 1744100, 3278908, 4098635, 8197270, 16394540, 20493175, 40986350, 81972700]

約数ペア:

[(1, 81972700), (2, 40986350), (4, 20493175), (5, 16394540), (10, 8197270), (20, 4098635), (25, 3278908), (47, 1744100), (50, 1639454), (94, 872050), (100, 819727), (107, 766100), (163, 502900), (188, 436025), (214, 383050), (235, 348820), (326, 251450), (428, 191525), (470, 174410), (535, 153220), (652, 125725), (815, 100580), (940, 87205), (1070, 76610), (1175, 69764), (1630, 50290), (2140, 38305), (2350, 34882), (2675, 30644), (3260, 25145), (4075, 20116), (4700, 17441), (5029, 16300), (5350, 15322), (7661, 10700), (8150, 10058)]