20163013880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{188863}}^1$

素因数の和:189048

約数の個数: 64

約数和(自身を含む): 48341629440

約数和(自身を除く): 28178615560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 170, 314, 340, 628, 680, 785, 1256, 1570, 2669, 3140, 5338, 6280, 10676, 13345, 21352, 26690, 53380, 106760, 188863, 377726, 755452, 944315, 1510904, 1888630, 3210671, 3777260, 6421342, 7554520, 12842684, 16053355, 25685368, 29651491, 32106710, 59302982, 64213420, 118605964, 128426840, 148257455, 237211928, 296514910, 504075347, 593029820, 1008150694, 1186059640, 2016301388, 2520376735, 4032602776, 5040753470, 10081506940, 20163013880]

約数ペア:

[(1, 20163013880), (2, 10081506940), (4, 5040753470), (5, 4032602776), (8, 2520376735), (10, 2016301388), (17, 1186059640), (20, 1008150694), (34, 593029820), (40, 504075347), (68, 296514910), (85, 237211928), (136, 148257455), (157, 128426840), (170, 118605964), (314, 64213420), (340, 59302982), (628, 32106710), (680, 29651491), (785, 25685368), (1256, 16053355), (1570, 12842684), (2669, 7554520), (3140, 6421342), (5338, 3777260), (6280, 3210671), (10676, 1888630), (13345, 1510904), (21352, 944315), (26690, 755452), (53380, 377726), (106760, 188863)]