163786640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{313}}^1$

素因数の和:568

約数の個数: 80

約数和(自身を含む): 396212736

約数和(自身を除く): 232426096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 211, 248, 310, 313, 422, 496, 620, 626, 844, 1055, 1240, 1252, 1565, 1688, 2110, 2480, 2504, 3130, 3376, 4220, 5008, 6260, 6541, 8440, 9703, 12520, 13082, 16880, 19406, 25040, 26164, 32705, 38812, 48515, 52328, 65410, 66043, 77624, 97030, 104656, 130820, 132086, 155248, 194060, 261640, 264172, 330215, 388120, 523280, 528344, 660430, 776240, 1056688, 1320860, 2047333, 2641720, 4094666, 5283440, 8189332, 10236665, 16378664, 20473330, 32757328, 40946660, 81893320, 163786640]

約数ペア:

[(1, 163786640), (2, 81893320), (4, 40946660), (5, 32757328), (8, 20473330), (10, 16378664), (16, 10236665), (20, 8189332), (31, 5283440), (40, 4094666), (62, 2641720), (80, 2047333), (124, 1320860), (155, 1056688), (211, 776240), (248, 660430), (310, 528344), (313, 523280), (422, 388120), (496, 330215), (620, 264172), (626, 261640), (844, 194060), (1055, 155248), (1240, 132086), (1252, 130820), (1565, 104656), (1688, 97030), (2110, 77624), (2480, 66043), (2504, 65410), (3130, 52328), (3376, 48515), (4220, 38812), (5008, 32705), (6260, 26164), (6541, 25040), (8440, 19406), (9703, 16880), (12520, 13082)]