42190225

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 69209856

約数和(自身を除く): 27019631

約数列:

[1, 5, 7, 11, 25, 31, 35, 49, 55, 77, 101, 155, 175, 217, 245, 275, 341, 385, 505, 539, 707, 775, 1085, 1111, 1225, 1519, 1705, 1925, 2387, 2525, 2695, 3131, 3535, 4949, 5425, 5555, 7595, 7777, 8525, 11935, 13475, 15655, 16709, 17675, 21917, 24745, 27775, 34441, 37975, 38885, 54439, 59675, 78275, 83545, 109585, 123725, 153419, 172205, 194425, 241087, 272195, 417725, 547925, 767095, 861025, 1205435, 1360975, 1687609, 3835475, 6027175, 8438045, 42190225]

約数ペア:

[(1, 42190225), (5, 8438045), (7, 6027175), (11, 3835475), (25, 1687609), (31, 1360975), (35, 1205435), (49, 861025), (55, 767095), (77, 547925), (101, 417725), (155, 272195), (175, 241087), (217, 194425), (245, 172205), (275, 153419), (341, 123725), (385, 109585), (505, 83545), (539, 78275), (707, 59675), (775, 54439), (1085, 38885), (1111, 37975), (1225, 34441), (1519, 27775), (1705, 24745), (1925, 21917), (2387, 17675), (2525, 16709), (2695, 15655), (3131, 13475), (3535, 11935), (4949, 8525), (5425, 7777), (5555, 7595)]