19007600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 120

約数和(自身を含む): 50048880

約数和(自身を除く): 31041280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 41, 50, 61, 76, 80, 82, 95, 100, 122, 152, 164, 190, 200, 205, 244, 304, 305, 328, 380, 400, 410, 475, 488, 610, 656, 760, 779, 820, 950, 976, 1025, 1159, 1220, 1520, 1525, 1558, 1640, 1900, 2050, 2318, 2440, 2501, 3050, 3116, 3280, 3800, 3895, 4100, 4636, 4880, 5002, 5795, 6100, 6232, 7600, 7790, 8200, 9272, 10004, 11590, 12200, 12464, 12505, 15580, 16400, 18544, 19475, 20008, 23180, 24400, 25010, 28975, 31160, 38950, 40016, 46360, 47519, 50020, 57950, 62320, 62525, 77900, 92720, 95038, 100040, 115900, 125050, 155800, 190076, 200080, 231800, 237595, 250100, 311600, 380152, 463600, 475190, 500200, 760304, 950380, 1000400, 1187975, 1900760, 2375950, 3801520, 4751900, 9503800, 19007600]

約数ペア:

[(1, 19007600), (2, 9503800), (4, 4751900), (5, 3801520), (8, 2375950), (10, 1900760), (16, 1187975), (19, 1000400), (20, 950380), (25, 760304), (38, 500200), (40, 475190), (41, 463600), (50, 380152), (61, 311600), (76, 250100), (80, 237595), (82, 231800), (95, 200080), (100, 190076), (122, 155800), (152, 125050), (164, 115900), (190, 100040), (200, 95038), (205, 92720), (244, 77900), (304, 62525), (305, 62320), (328, 57950), (380, 50020), (400, 47519), (410, 46360), (475, 40016), (488, 38950), (610, 31160), (656, 28975), (760, 25010), (779, 24400), (820, 23180), (950, 20008), (976, 19475), (1025, 18544), (1159, 16400), (1220, 15580), (1520, 12505), (1525, 12464), (1558, 12200), (1640, 11590), (1900, 10004), (2050, 9272), (2318, 8200), (2440, 7790), (2501, 7600), (3050, 6232), (3116, 6100), (3280, 5795), (3800, 5002), (3895, 4880), (4100, 4636)]