13721000840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{919}}^1$

素因数の和:1231

約数の個数: 128

約数和(自身を含む): 32649696000

約数和(自身を除く): 18928695160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 61, 116, 122, 145, 211, 232, 244, 290, 305, 422, 488, 580, 610, 844, 919, 1055, 1160, 1220, 1688, 1769, 1838, 2110, 2440, 3538, 3676, 4220, 4595, 6119, 7076, 7352, 8440, 8845, 9190, 12238, 12871, 14152, 17690, 18380, 24476, 25742, 26651, 30595, 35380, 36760, 48952, 51484, 53302, 56059, 61190, 64355, 70760, 102968, 106604, 112118, 122380, 128710, 133255, 193909, 213208, 224236, 244760, 257420, 266510, 280295, 373259, 387818, 448472, 514840, 533020, 560590, 746518, 775636, 969545, 1066040, 1121180, 1493036, 1551272, 1625711, 1866295, 1939090, 2242360, 2986072, 3251422, 3732590, 3878180, 5623361, 6502844, 7465180, 7756360, 8128555, 11246722, 11828449, 13005688, 14930360, 16257110, 22493444, 23656898, 28116805, 32514220, 44986888, 47313796, 56233610, 59142245, 65028440, 94627592, 112467220, 118284490, 224934440, 236568980, 343025021, 473137960, 686050042, 1372100084, 1715125105, 2744200168, 3430250210, 6860500420, 13721000840]

約数ペア:

[(1, 13721000840), (2, 6860500420), (4, 3430250210), (5, 2744200168), (8, 1715125105), (10, 1372100084), (20, 686050042), (29, 473137960), (40, 343025021), (58, 236568980), (61, 224934440), (116, 118284490), (122, 112467220), (145, 94627592), (211, 65028440), (232, 59142245), (244, 56233610), (290, 47313796), (305, 44986888), (422, 32514220), (488, 28116805), (580, 23656898), (610, 22493444), (844, 16257110), (919, 14930360), (1055, 13005688), (1160, 11828449), (1220, 11246722), (1688, 8128555), (1769, 7756360), (1838, 7465180), (2110, 6502844), (2440, 5623361), (3538, 3878180), (3676, 3732590), (4220, 3251422), (4595, 2986072), (6119, 2242360), (7076, 1939090), (7352, 1866295), (8440, 1625711), (8845, 1551272), (9190, 1493036), (12238, 1121180), (12871, 1066040), (14152, 969545), (17690, 775636), (18380, 746518), (24476, 560590), (25742, 533020), (26651, 514840), (30595, 448472), (35380, 387818), (36760, 373259), (48952, 280295), (51484, 266510), (53302, 257420), (56059, 244760), (61190, 224236), (64355, 213208), (70760, 193909), (102968, 133255), (106604, 128710), (112118, 122380)]