2178155980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{108799}}^1$

素因数の和:108839

約数の個数: 96

約数和(自身を含む): 6141542400

約数和(自身を除く): 3963386420

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1820, 2002, 2860, 4004, 5005, 10010, 20020, 108799, 217598, 435196, 543995, 761593, 1087990, 1196789, 1414387, 1523186, 2175980, 2393578, 2828774, 3046372, 3807965, 4787156, 5657548, 5983945, 7071935, 7615930, 8377523, 9900709, 11967890, 14143870, 15231860, 15558257, 16755046, 19801418, 23935780, 28287740, 31116514, 33510092, 39602836, 41887615, 49503545, 62233028, 77791285, 83775230, 99007090, 108907799, 155582570, 167550460, 198014180, 217815598, 311165140, 435631196, 544538995, 1089077990, 2178155980]

約数ペア:

[(1, 2178155980), (2, 1089077990), (4, 544538995), (5, 435631196), (7, 311165140), (10, 217815598), (11, 198014180), (13, 167550460), (14, 155582570), (20, 108907799), (22, 99007090), (26, 83775230), (28, 77791285), (35, 62233028), (44, 49503545), (52, 41887615), (55, 39602836), (65, 33510092), (70, 31116514), (77, 28287740), (91, 23935780), (110, 19801418), (130, 16755046), (140, 15558257), (143, 15231860), (154, 14143870), (182, 11967890), (220, 9900709), (260, 8377523), (286, 7615930), (308, 7071935), (364, 5983945), (385, 5657548), (455, 4787156), (572, 3807965), (715, 3046372), (770, 2828774), (910, 2393578), (1001, 2175980), (1430, 1523186), (1540, 1414387), (1820, 1196789), (2002, 1087990), (2860, 761593), (4004, 543995), (5005, 435196), (10010, 217598), (20020, 108799)]