388640440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{1901}}^1$

素因数の和:2200

約数の個数: 64

約数和(自身を含む): 924372000

約数和(自身を除く): 535731560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 269, 380, 538, 760, 1076, 1345, 1901, 2152, 2690, 3802, 5111, 5380, 7604, 9505, 10222, 10760, 15208, 19010, 20444, 25555, 36119, 38020, 40888, 51110, 72238, 76040, 102220, 144476, 180595, 204440, 288952, 361190, 511369, 722380, 1022738, 1444760, 2045476, 2556845, 4090952, 5113690, 9716011, 10227380, 19432022, 20454760, 38864044, 48580055, 77728088, 97160110, 194320220, 388640440]

約数ペア:

[(1, 388640440), (2, 194320220), (4, 97160110), (5, 77728088), (8, 48580055), (10, 38864044), (19, 20454760), (20, 19432022), (38, 10227380), (40, 9716011), (76, 5113690), (95, 4090952), (152, 2556845), (190, 2045476), (269, 1444760), (380, 1022738), (538, 722380), (760, 511369), (1076, 361190), (1345, 288952), (1901, 204440), (2152, 180595), (2690, 144476), (3802, 102220), (5111, 76040), (5380, 72238), (7604, 51110), (9505, 40888), (10222, 38020), (10760, 36119), (15208, 25555), (19010, 20444)]