2912686840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19739}}^1$

素因数の和:19805

約数の個数: 128

約数和(自身を含む): 8186572800

約数和(自身を除く): 5273885960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 85, 119, 124, 136, 140, 155, 170, 217, 238, 248, 280, 310, 340, 434, 476, 527, 595, 620, 680, 868, 952, 1054, 1085, 1190, 1240, 1736, 2108, 2170, 2380, 2635, 3689, 4216, 4340, 4760, 5270, 7378, 8680, 10540, 14756, 18445, 19739, 21080, 29512, 36890, 39478, 73780, 78956, 98695, 138173, 147560, 157912, 197390, 276346, 335563, 394780, 552692, 611909, 671126, 690865, 789560, 1105384, 1223818, 1342252, 1381730, 1677815, 2348941, 2447636, 2684504, 2763460, 3059545, 3355630, 4283363, 4697882, 4895272, 5526920, 6119090, 6711260, 8566726, 9395764, 10402453, 11744705, 12238180, 13422520, 17133452, 18791528, 20804906, 21416815, 23489410, 24476360, 34266904, 41609812, 42833630, 46978820, 52012265, 72817171, 83219624, 85667260, 93957640, 104024530, 145634342, 171334520, 208049060, 291268684, 364085855, 416098120, 582537368, 728171710, 1456343420, 2912686840]

約数ペア:

[(1, 2912686840), (2, 1456343420), (4, 728171710), (5, 582537368), (7, 416098120), (8, 364085855), (10, 291268684), (14, 208049060), (17, 171334520), (20, 145634342), (28, 104024530), (31, 93957640), (34, 85667260), (35, 83219624), (40, 72817171), (56, 52012265), (62, 46978820), (68, 42833630), (70, 41609812), (85, 34266904), (119, 24476360), (124, 23489410), (136, 21416815), (140, 20804906), (155, 18791528), (170, 17133452), (217, 13422520), (238, 12238180), (248, 11744705), (280, 10402453), (310, 9395764), (340, 8566726), (434, 6711260), (476, 6119090), (527, 5526920), (595, 4895272), (620, 4697882), (680, 4283363), (868, 3355630), (952, 3059545), (1054, 2763460), (1085, 2684504), (1190, 2447636), (1240, 2348941), (1736, 1677815), (2108, 1381730), (2170, 1342252), (2380, 1223818), (2635, 1105384), (3689, 789560), (4216, 690865), (4340, 671126), (4760, 611909), (5270, 552692), (7378, 394780), (8680, 335563), (10540, 276346), (14756, 197390), (18445, 157912), (19739, 147560), (21080, 138173), (29512, 98695), (36890, 78956), (39478, 73780)]