20147600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:289

約数の個数: 120

約数和(自身を含む): 55814880

約数和(自身を除く): 35667280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 80, 88, 95, 100, 110, 152, 176, 190, 200, 209, 220, 241, 275, 304, 380, 400, 418, 440, 475, 482, 550, 760, 836, 880, 950, 964, 1045, 1100, 1205, 1520, 1672, 1900, 1928, 2090, 2200, 2410, 2651, 3344, 3800, 3856, 4180, 4400, 4579, 4820, 5225, 5302, 6025, 7600, 8360, 9158, 9640, 10450, 10604, 12050, 13255, 16720, 18316, 19280, 20900, 21208, 22895, 24100, 26510, 36632, 41800, 42416, 45790, 48200, 50369, 53020, 66275, 73264, 83600, 91580, 96400, 100738, 106040, 114475, 132550, 183160, 201476, 212080, 228950, 251845, 265100, 366320, 402952, 457900, 503690, 530200, 805904, 915800, 1007380, 1060400, 1259225, 1831600, 2014760, 2518450, 4029520, 5036900, 10073800, 20147600]

約数ペア:

[(1, 20147600), (2, 10073800), (4, 5036900), (5, 4029520), (8, 2518450), (10, 2014760), (11, 1831600), (16, 1259225), (19, 1060400), (20, 1007380), (22, 915800), (25, 805904), (38, 530200), (40, 503690), (44, 457900), (50, 402952), (55, 366320), (76, 265100), (80, 251845), (88, 228950), (95, 212080), (100, 201476), (110, 183160), (152, 132550), (176, 114475), (190, 106040), (200, 100738), (209, 96400), (220, 91580), (241, 83600), (275, 73264), (304, 66275), (380, 53020), (400, 50369), (418, 48200), (440, 45790), (475, 42416), (482, 41800), (550, 36632), (760, 26510), (836, 24100), (880, 22895), (950, 21208), (964, 20900), (1045, 19280), (1100, 18316), (1205, 16720), (1520, 13255), (1672, 12050), (1900, 10604), (1928, 10450), (2090, 9640), (2200, 9158), (2410, 8360), (2651, 7600), (3344, 6025), (3800, 5302), (3856, 5225), (4180, 4820), (4400, 4579)]