20121529910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{179801}}^1$

素因数の和:179877

約数の個数: 48

約数和(自身を含む): 39458627712

約数和(自身を除く): 19337097802

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 361, 589, 722, 1178, 1805, 2945, 3610, 5890, 11191, 22382, 55955, 111910, 179801, 359602, 899005, 1798010, 3416219, 5573831, 6832438, 11147662, 17081095, 27869155, 34162190, 55738310, 64908161, 105902789, 129816322, 211805578, 324540805, 529513945, 649081610, 1059027890, 2012152991, 4024305982, 10060764955, 20121529910]

約数ペア:

[(1, 20121529910), (2, 10060764955), (5, 4024305982), (10, 2012152991), (19, 1059027890), (31, 649081610), (38, 529513945), (62, 324540805), (95, 211805578), (155, 129816322), (190, 105902789), (310, 64908161), (361, 55738310), (589, 34162190), (722, 27869155), (1178, 17081095), (1805, 11147662), (2945, 6832438), (3610, 5573831), (5890, 3416219), (11191, 1798010), (22382, 899005), (55955, 359602), (111910, 179801)]