21167691560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{416359}}^1$

素因数の和:416442

約数の個数: 64

約数和(自身を含む): 50362905600

約数和(自身を除く): 29195214040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 620, 820, 1240, 1271, 1640, 2542, 5084, 6355, 10168, 12710, 25420, 50840, 416359, 832718, 1665436, 2081795, 3330872, 4163590, 8327180, 12907129, 16654360, 17070719, 25814258, 34141438, 51628516, 64535645, 68282876, 85353595, 103257032, 129071290, 136565752, 170707190, 258142580, 341414380, 516285160, 529192289, 682828760, 1058384578, 2116769156, 2645961445, 4233538312, 5291922890, 10583845780, 21167691560]

約数ペア:

[(1, 21167691560), (2, 10583845780), (4, 5291922890), (5, 4233538312), (8, 2645961445), (10, 2116769156), (20, 1058384578), (31, 682828760), (40, 529192289), (41, 516285160), (62, 341414380), (82, 258142580), (124, 170707190), (155, 136565752), (164, 129071290), (205, 103257032), (248, 85353595), (310, 68282876), (328, 64535645), (410, 51628516), (620, 34141438), (820, 25814258), (1240, 17070719), (1271, 16654360), (1640, 12907129), (2542, 8327180), (5084, 4163590), (6355, 3330872), (10168, 2081795), (12710, 1665436), (25420, 832718), (50840, 416359)]