1212121456

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{673}}^1\times {\mathrm{1237}}^1$

素因数の和:1938

約数の個数: 80

約数和(自身を含む): 2897078464

約数和(自身を除く): 1684957008

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 673, 728, 1237, 1346, 1456, 2474, 2692, 4711, 4948, 5384, 8659, 8749, 9422, 9896, 10768, 16081, 17318, 17498, 18844, 19792, 32162, 34636, 34996, 37688, 61243, 64324, 69272, 69992, 75376, 112567, 122486, 128648, 138544, 139984, 225134, 244972, 257296, 450268, 489944, 832501, 900536, 979888, 1665002, 1801072, 3330004, 5827507, 6660008, 10822513, 11655014, 13320016, 21645026, 23310028, 43290052, 46620056, 75757591, 86580104, 93240112, 151515182, 173160208, 303030364, 606060728, 1212121456]

約数ペア:

[(1, 1212121456), (2, 606060728), (4, 303030364), (7, 173160208), (8, 151515182), (13, 93240112), (14, 86580104), (16, 75757591), (26, 46620056), (28, 43290052), (52, 23310028), (56, 21645026), (91, 13320016), (104, 11655014), (112, 10822513), (182, 6660008), (208, 5827507), (364, 3330004), (673, 1801072), (728, 1665002), (1237, 979888), (1346, 900536), (1456, 832501), (2474, 489944), (2692, 450268), (4711, 257296), (4948, 244972), (5384, 225134), (8659, 139984), (8749, 138544), (9422, 128648), (9896, 122486), (10768, 112567), (16081, 75376), (17318, 69992), (17498, 69272), (18844, 64324), (19792, 61243), (32162, 37688), (34636, 34996)]