12912170840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1\times {\mathrm{27917}}^1$

素因数の和:28332

約数の個数: 64

約数和(自身を含む): 30071036160

約数和(自身を除く): 17158865320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 373, 620, 746, 1240, 1492, 1865, 2984, 3730, 7460, 11563, 14920, 23126, 27917, 46252, 55834, 57815, 92504, 111668, 115630, 139585, 223336, 231260, 279170, 462520, 558340, 865427, 1116680, 1730854, 3461708, 4327135, 6923416, 8654270, 10413041, 17308540, 20826082, 34617080, 41652164, 52065205, 83304328, 104130410, 208260820, 322804271, 416521640, 645608542, 1291217084, 1614021355, 2582434168, 3228042710, 6456085420, 12912170840]

約数ペア:

[(1, 12912170840), (2, 6456085420), (4, 3228042710), (5, 2582434168), (8, 1614021355), (10, 1291217084), (20, 645608542), (31, 416521640), (40, 322804271), (62, 208260820), (124, 104130410), (155, 83304328), (248, 52065205), (310, 41652164), (373, 34617080), (620, 20826082), (746, 17308540), (1240, 10413041), (1492, 8654270), (1865, 6923416), (2984, 4327135), (3730, 3461708), (7460, 1730854), (11563, 1116680), (14920, 865427), (23126, 558340), (27917, 462520), (46252, 279170), (55834, 231260), (57815, 223336), (92504, 139585), (111668, 115630)]