20807557420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:548

約数の個数: 192

約数和(自身を含む): 49876041600

約数和(自身を除く): 29068484180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 89, 101, 116, 130, 145, 178, 202, 260, 290, 307, 356, 377, 404, 445, 505, 580, 614, 754, 890, 1010, 1157, 1228, 1313, 1508, 1535, 1780, 1885, 2020, 2314, 2581, 2626, 2929, 3070, 3770, 3991, 4628, 5162, 5252, 5785, 5858, 6140, 6565, 7540, 7982, 8903, 8989, 10324, 11570, 11716, 12905, 13130, 14645, 15964, 17806, 17978, 19955, 23140, 25810, 26260, 27323, 29290, 31007, 33553, 35612, 35956, 38077, 39910, 44515, 44945, 51620, 54646, 58580, 62014, 67106, 76154, 79820, 89030, 89890, 109292, 115739, 116857, 124028, 134212, 136615, 152308, 155035, 167765, 178060, 179780, 190385, 231478, 233714, 260681, 273230, 310070, 335530, 355199, 380770, 403091, 462956, 467428, 521362, 546460, 578695, 584285, 620140, 671060, 710398, 761540, 792367, 806182, 899203, 1042724, 1157390, 1168570, 1303405, 1420796, 1584734, 1612364, 1775995, 1798406, 2015455, 2314780, 2337140, 2606810, 2759623, 3169468, 3388853, 3551990, 3596812, 3961835, 4030910, 4496015, 5213620, 5519246, 6777706, 7103980, 7923670, 8061820, 8992030, 10300771, 11038492, 11689639, 13555412, 13798115, 15847340, 16944265, 17984060, 20601542, 23379278, 27596230, 33888530, 35875099, 41203084, 46758556, 51503855, 55192460, 58448195, 67777060, 71750198, 80029067, 103007710, 116896390, 143500396, 160058134, 179375495, 206015420, 233792780, 320116268, 358750990, 400145335, 717501980, 800290670, 1040377871, 1600581340, 2080755742, 4161511484, 5201889355, 10403778710, 20807557420]

約数ペア:

[(1, 20807557420), (2, 10403778710), (4, 5201889355), (5, 4161511484), (10, 2080755742), (13, 1600581340), (20, 1040377871), (26, 800290670), (29, 717501980), (52, 400145335), (58, 358750990), (65, 320116268), (89, 233792780), (101, 206015420), (116, 179375495), (130, 160058134), (145, 143500396), (178, 116896390), (202, 103007710), (260, 80029067), (290, 71750198), (307, 67777060), (356, 58448195), (377, 55192460), (404, 51503855), (445, 46758556), (505, 41203084), (580, 35875099), (614, 33888530), (754, 27596230), (890, 23379278), (1010, 20601542), (1157, 17984060), (1228, 16944265), (1313, 15847340), (1508, 13798115), (1535, 13555412), (1780, 11689639), (1885, 11038492), (2020, 10300771), (2314, 8992030), (2581, 8061820), (2626, 7923670), (2929, 7103980), (3070, 6777706), (3770, 5519246), (3991, 5213620), (4628, 4496015), (5162, 4030910), (5252, 3961835), (5785, 3596812), (5858, 3551990), (6140, 3388853), (6565, 3169468), (7540, 2759623), (7982, 2606810), (8903, 2337140), (8989, 2314780), (10324, 2015455), (11570, 1798406), (11716, 1775995), (12905, 1612364), (13130, 1584734), (14645, 1420796), (15964, 1303405), (17806, 1168570), (17978, 1157390), (19955, 1042724), (23140, 899203), (25810, 806182), (26260, 792367), (27323, 761540), (29290, 710398), (31007, 671060), (33553, 620140), (35612, 584285), (35956, 578695), (38077, 546460), (39910, 521362), (44515, 467428), (44945, 462956), (51620, 403091), (54646, 380770), (58580, 355199), (62014, 335530), (67106, 310070), (76154, 273230), (79820, 260681), (89030, 233714), (89890, 231478), (109292, 190385), (115739, 179780), (116857, 178060), (124028, 167765), (134212, 155035), (136615, 152308)]