18018981890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{77047}}^1$

素因数の和:77331

約数の個数: 64

約数和(自身を含む): 40074822144

約数和(自身を除く): 22055840254

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 257, 455, 514, 910, 1285, 1799, 2570, 3341, 3598, 6682, 8995, 16705, 17990, 23387, 33410, 46774, 77047, 116935, 154094, 233870, 385235, 539329, 770470, 1001611, 1078658, 2003222, 2696645, 5008055, 5393290, 7011277, 10016110, 14022554, 19801079, 35056385, 39602158, 70112770, 99005395, 138607553, 198010790, 257414027, 277215106, 514828054, 693037765, 1287070135, 1386075530, 1801898189, 2574140270, 3603796378, 9009490945, 18018981890]

約数ペア:

[(1, 18018981890), (2, 9009490945), (5, 3603796378), (7, 2574140270), (10, 1801898189), (13, 1386075530), (14, 1287070135), (26, 693037765), (35, 514828054), (65, 277215106), (70, 257414027), (91, 198010790), (130, 138607553), (182, 99005395), (257, 70112770), (455, 39602158), (514, 35056385), (910, 19801079), (1285, 14022554), (1799, 10016110), (2570, 7011277), (3341, 5393290), (3598, 5008055), (6682, 2696645), (8995, 2003222), (16705, 1078658), (17990, 1001611), (23387, 770470), (33410, 539329), (46774, 385235), (77047, 233870), (116935, 154094)]