20178631810

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1\times {\mathrm{523}}^1\times {\mathrm{571}}^1$

素因数の和:1363

約数の個数: 64

約数和(自身を含む): 37873630080

約数和(自身を除く): 17694998270

約数列:

[1, 2, 5, 10, 29, 58, 145, 233, 290, 466, 523, 571, 1046, 1142, 1165, 2330, 2615, 2855, 5230, 5710, 6757, 13514, 15167, 16559, 30334, 33118, 33785, 67570, 75835, 82795, 121859, 133043, 151670, 165590, 243718, 266086, 298633, 597266, 609295, 665215, 1218590, 1330430, 1493165, 2986330, 3533911, 3858247, 7067822, 7716494, 8660357, 17320714, 17669555, 19291235, 35339110, 38582470, 43301785, 69581489, 86603570, 139162978, 347907445, 695814890, 2017863181, 4035726362, 10089315905, 20178631810]

約数ペア:

[(1, 20178631810), (2, 10089315905), (5, 4035726362), (10, 2017863181), (29, 695814890), (58, 347907445), (145, 139162978), (233, 86603570), (290, 69581489), (466, 43301785), (523, 38582470), (571, 35339110), (1046, 19291235), (1142, 17669555), (1165, 17320714), (2330, 8660357), (2615, 7716494), (2855, 7067822), (5230, 3858247), (5710, 3533911), (6757, 2986330), (13514, 1493165), (15167, 1330430), (16559, 1218590), (30334, 665215), (33118, 609295), (33785, 597266), (67570, 298633), (75835, 266086), (82795, 243718), (121859, 165590), (133043, 151670)]