15721944725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:487

約数の個数: 96

約数和(自身を含む): 22080432000

約数和(自身を除く): 6358487275

約数列:

[1, 5, 19, 25, 29, 37, 95, 109, 145, 185, 283, 475, 545, 551, 703, 725, 925, 1073, 1415, 2071, 2725, 2755, 3161, 3515, 4033, 5365, 5377, 7075, 8207, 10355, 10471, 13775, 15805, 17575, 20165, 20387, 26825, 26885, 30847, 41035, 51775, 52355, 60059, 76627, 79025, 100825, 101935, 116957, 134425, 154235, 155933, 198949, 205175, 261775, 300295, 303659, 383135, 509675, 584785, 586093, 771175, 779665, 894563, 994745, 1141339, 1501475, 1518295, 1915675, 2222183, 2923925, 2930465, 3898325, 4472815, 4973725, 5706695, 5769521, 7591475, 11110915, 14652325, 16996697, 21685441, 22364075, 28533475, 28847605, 33098831, 55554575, 84983485, 108427205, 144238025, 165494155, 424917425, 542136025, 628877789, 827470775, 3144388945, 15721944725]

約数ペア:

[(1, 15721944725), (5, 3144388945), (19, 827470775), (25, 628877789), (29, 542136025), (37, 424917425), (95, 165494155), (109, 144238025), (145, 108427205), (185, 84983485), (283, 55554575), (475, 33098831), (545, 28847605), (551, 28533475), (703, 22364075), (725, 21685441), (925, 16996697), (1073, 14652325), (1415, 11110915), (2071, 7591475), (2725, 5769521), (2755, 5706695), (3161, 4973725), (3515, 4472815), (4033, 3898325), (5365, 2930465), (5377, 2923925), (7075, 2222183), (8207, 1915675), (10355, 1518295), (10471, 1501475), (13775, 1141339), (15805, 994745), (17575, 894563), (20165, 779665), (20387, 771175), (26825, 586093), (26885, 584785), (30847, 509675), (41035, 383135), (51775, 303659), (52355, 300295), (60059, 261775), (76627, 205175), (79025, 198949), (100825, 155933), (101935, 154235), (116957, 134425)]