21048652900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{1489}}^1$

素因数の和:1766

約数の個数: 144

約数和(自身を含む): 50842995840

約数和(自身を除く): 29794342940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 142, 181, 220, 275, 284, 355, 362, 550, 710, 724, 781, 905, 1100, 1420, 1489, 1562, 1775, 1810, 1991, 2978, 3124, 3550, 3620, 3905, 3982, 4525, 5956, 7100, 7445, 7810, 7964, 9050, 9955, 12851, 14890, 15620, 16379, 18100, 19525, 19910, 25702, 29780, 32758, 37225, 39050, 39820, 49775, 51404, 64255, 65516, 74450, 78100, 81895, 99550, 105719, 128510, 141361, 148900, 163790, 199100, 211438, 257020, 269509, 282722, 321275, 327580, 409475, 422876, 528595, 539018, 565444, 642550, 706805, 818950, 1057190, 1078036, 1162909, 1285100, 1347545, 1413610, 1637900, 2114380, 2325818, 2642975, 2695090, 2827220, 2964599, 3534025, 4651636, 5285950, 5390180, 5814545, 5929198, 6737725, 7068050, 10571900, 11629090, 11858396, 13475450, 14136100, 14822995, 19135139, 23258180, 26950900, 29072725, 29645990, 38270278, 58145450, 59291980, 74114975, 76540556, 95675695, 116290900, 148229950, 191351390, 210486529, 296459900, 382702780, 420973058, 478378475, 841946116, 956756950, 1052432645, 1913513900, 2104865290, 4209730580, 5262163225, 10524326450, 21048652900]

約数ペア:

[(1, 21048652900), (2, 10524326450), (4, 5262163225), (5, 4209730580), (10, 2104865290), (11, 1913513900), (20, 1052432645), (22, 956756950), (25, 841946116), (44, 478378475), (50, 420973058), (55, 382702780), (71, 296459900), (100, 210486529), (110, 191351390), (142, 148229950), (181, 116290900), (220, 95675695), (275, 76540556), (284, 74114975), (355, 59291980), (362, 58145450), (550, 38270278), (710, 29645990), (724, 29072725), (781, 26950900), (905, 23258180), (1100, 19135139), (1420, 14822995), (1489, 14136100), (1562, 13475450), (1775, 11858396), (1810, 11629090), (1991, 10571900), (2978, 7068050), (3124, 6737725), (3550, 5929198), (3620, 5814545), (3905, 5390180), (3982, 5285950), (4525, 4651636), (5956, 3534025), (7100, 2964599), (7445, 2827220), (7810, 2695090), (7964, 2642975), (9050, 2325818), (9955, 2114380), (12851, 1637900), (14890, 1413610), (15620, 1347545), (16379, 1285100), (18100, 1162909), (19525, 1078036), (19910, 1057190), (25702, 818950), (29780, 706805), (32758, 642550), (37225, 565444), (39050, 539018), (39820, 528595), (49775, 422876), (51404, 409475), (64255, 327580), (65516, 321275), (74450, 282722), (78100, 269509), (81895, 257020), (99550, 211438), (105719, 199100), (128510, 163790), (141361, 148900)]