15551270840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1\times {\mathrm{2131}}^1$

素因数の和:2605

約数の個数: 128

約数和(自身を含む): 40709260800

約数和(自身を除く): 25157989960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 389, 469, 536, 670, 778, 938, 1340, 1556, 1876, 1945, 2131, 2345, 2680, 2723, 3112, 3752, 3890, 4262, 4690, 5446, 7780, 8524, 9380, 10655, 10892, 13615, 14917, 15560, 17048, 18760, 21310, 21784, 26063, 27230, 29834, 42620, 52126, 54460, 59668, 74585, 85240, 104252, 108920, 119336, 130315, 142777, 149170, 182441, 208504, 260630, 285554, 298340, 364882, 521260, 571108, 596680, 713885, 729764, 828959, 912205, 999439, 1042520, 1142216, 1427770, 1459528, 1657918, 1824410, 1998878, 2855540, 3315836, 3648820, 3997756, 4144795, 4997195, 5711080, 5802713, 6631672, 7297640, 7995512, 8289590, 9994390, 11605426, 16579180, 19988780, 23210852, 29013565, 33158360, 39977560, 46421704, 55540253, 58027130, 111080506, 116054260, 222161012, 232108520, 277701265, 388781771, 444322024, 555402530, 777563542, 1110805060, 1555127084, 1943908855, 2221610120, 3110254168, 3887817710, 7775635420, 15551270840]

約数ペア:

[(1, 15551270840), (2, 7775635420), (4, 3887817710), (5, 3110254168), (7, 2221610120), (8, 1943908855), (10, 1555127084), (14, 1110805060), (20, 777563542), (28, 555402530), (35, 444322024), (40, 388781771), (56, 277701265), (67, 232108520), (70, 222161012), (134, 116054260), (140, 111080506), (268, 58027130), (280, 55540253), (335, 46421704), (389, 39977560), (469, 33158360), (536, 29013565), (670, 23210852), (778, 19988780), (938, 16579180), (1340, 11605426), (1556, 9994390), (1876, 8289590), (1945, 7995512), (2131, 7297640), (2345, 6631672), (2680, 5802713), (2723, 5711080), (3112, 4997195), (3752, 4144795), (3890, 3997756), (4262, 3648820), (4690, 3315836), (5446, 2855540), (7780, 1998878), (8524, 1824410), (9380, 1657918), (10655, 1459528), (10892, 1427770), (13615, 1142216), (14917, 1042520), (15560, 999439), (17048, 912205), (18760, 828959), (21310, 729764), (21784, 713885), (26063, 596680), (27230, 571108), (29834, 521260), (42620, 364882), (52126, 298340), (54460, 285554), (59668, 260630), (74585, 208504), (85240, 182441), (104252, 149170), (108920, 142777), (119336, 130315)]