138978580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:497

約数の個数: 96

約数和(自身を含む): 332817408

約数和(自身を除く): 193838828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 43, 52, 62, 65, 86, 124, 130, 155, 172, 215, 260, 310, 401, 403, 430, 559, 620, 802, 806, 860, 1118, 1333, 1604, 1612, 2005, 2015, 2236, 2666, 2795, 4010, 4030, 5213, 5332, 5590, 6665, 8020, 8060, 10426, 11180, 12431, 13330, 17243, 17329, 20852, 24862, 26065, 26660, 34486, 34658, 49724, 52130, 62155, 68972, 69316, 86215, 86645, 104260, 124310, 161603, 172430, 173290, 224159, 248620, 323206, 344860, 346580, 448318, 534533, 646412, 808015, 896636, 1069066, 1120795, 1616030, 2138132, 2241590, 2672665, 3232060, 4483180, 5345330, 6948929, 10690660, 13897858, 27795716, 34744645, 69489290, 138978580]

約数ペア:

[(1, 138978580), (2, 69489290), (4, 34744645), (5, 27795716), (10, 13897858), (13, 10690660), (20, 6948929), (26, 5345330), (31, 4483180), (43, 3232060), (52, 2672665), (62, 2241590), (65, 2138132), (86, 1616030), (124, 1120795), (130, 1069066), (155, 896636), (172, 808015), (215, 646412), (260, 534533), (310, 448318), (401, 346580), (403, 344860), (430, 323206), (559, 248620), (620, 224159), (802, 173290), (806, 172430), (860, 161603), (1118, 124310), (1333, 104260), (1604, 86645), (1612, 86215), (2005, 69316), (2015, 68972), (2236, 62155), (2666, 52130), (2795, 49724), (4010, 34658), (4030, 34486), (5213, 26660), (5332, 26065), (5590, 24862), (6665, 20852), (8020, 17329), (8060, 17243), (10426, 13330), (11180, 12431)]