213885520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1069}}^1$

素因数の和:1184

約数の個数: 80

約数和(自身を含む): 518248080

約数和(自身を除く): 304362560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 61, 80, 82, 122, 164, 205, 244, 305, 328, 410, 488, 610, 656, 820, 976, 1069, 1220, 1640, 2138, 2440, 2501, 3280, 4276, 4880, 5002, 5345, 8552, 10004, 10690, 12505, 17104, 20008, 21380, 25010, 40016, 42760, 43829, 50020, 65209, 85520, 87658, 100040, 130418, 175316, 200080, 219145, 260836, 326045, 350632, 438290, 521672, 652090, 701264, 876580, 1043344, 1304180, 1753160, 2608360, 2673569, 3506320, 5216720, 5347138, 10694276, 13367845, 21388552, 26735690, 42777104, 53471380, 106942760, 213885520]

約数ペア:

[(1, 213885520), (2, 106942760), (4, 53471380), (5, 42777104), (8, 26735690), (10, 21388552), (16, 13367845), (20, 10694276), (40, 5347138), (41, 5216720), (61, 3506320), (80, 2673569), (82, 2608360), (122, 1753160), (164, 1304180), (205, 1043344), (244, 876580), (305, 701264), (328, 652090), (410, 521672), (488, 438290), (610, 350632), (656, 326045), (820, 260836), (976, 219145), (1069, 200080), (1220, 175316), (1640, 130418), (2138, 100040), (2440, 87658), (2501, 85520), (3280, 65209), (4276, 50020), (4880, 43829), (5002, 42760), (5345, 40016), (8552, 25010), (10004, 21380), (10690, 20008), (12505, 17104)]