20171617840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{743}}^1\times {\mathrm{30851}}^1$

素因数の和:31618

約数の個数: 80

約数和(自身を含む): 51233078016

約数和(自身を除く): 31061460176

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 743, 880, 1486, 2972, 3715, 5944, 7430, 8173, 11888, 14860, 16346, 29720, 30851, 32692, 40865, 59440, 61702, 65384, 81730, 123404, 130768, 154255, 163460, 246808, 308510, 326920, 339361, 493616, 617020, 653840, 678722, 1234040, 1357444, 1696805, 2468080, 2714888, 3393610, 5429776, 6787220, 13574440, 22922293, 27148880, 45844586, 91689172, 114611465, 183378344, 229222930, 252145223, 366756688, 458445860, 504290446, 916891720, 1008580892, 1260726115, 1833783440, 2017161784, 2521452230, 4034323568, 5042904460, 10085808920, 20171617840]

約数ペア:

[(1, 20171617840), (2, 10085808920), (4, 5042904460), (5, 4034323568), (8, 2521452230), (10, 2017161784), (11, 1833783440), (16, 1260726115), (20, 1008580892), (22, 916891720), (40, 504290446), (44, 458445860), (55, 366756688), (80, 252145223), (88, 229222930), (110, 183378344), (176, 114611465), (220, 91689172), (440, 45844586), (743, 27148880), (880, 22922293), (1486, 13574440), (2972, 6787220), (3715, 5429776), (5944, 3393610), (7430, 2714888), (8173, 2468080), (11888, 1696805), (14860, 1357444), (16346, 1234040), (29720, 678722), (30851, 653840), (32692, 617020), (40865, 493616), (59440, 339361), (61702, 326920), (65384, 308510), (81730, 246808), (123404, 163460), (130768, 154255)]