251534920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3637}}^1$

素因数の和:3687

約数の個数: 128

約数和(自身を含む): 733420800

約数和(自身を除く): 481885880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 280, 364, 380, 455, 494, 520, 532, 665, 728, 760, 910, 988, 1064, 1235, 1330, 1729, 1820, 1976, 2470, 2660, 3458, 3637, 3640, 4940, 5320, 6916, 7274, 8645, 9880, 13832, 14548, 17290, 18185, 25459, 29096, 34580, 36370, 47281, 50918, 69103, 69160, 72740, 94562, 101836, 127295, 138206, 145480, 189124, 203672, 236405, 254590, 276412, 330967, 345515, 378248, 472810, 483721, 509180, 552824, 661934, 691030, 898339, 945620, 967442, 1018360, 1323868, 1382060, 1654835, 1796678, 1891240, 1934884, 2418605, 2647736, 2764120, 3309670, 3593356, 3869768, 4491695, 4837210, 6288373, 6619340, 7186712, 8983390, 9674420, 12576746, 13238680, 17966780, 19348840, 25153492, 31441865, 35933560, 50306984, 62883730, 125767460, 251534920]

約数ペア:

[(1, 251534920), (2, 125767460), (4, 62883730), (5, 50306984), (7, 35933560), (8, 31441865), (10, 25153492), (13, 19348840), (14, 17966780), (19, 13238680), (20, 12576746), (26, 9674420), (28, 8983390), (35, 7186712), (38, 6619340), (40, 6288373), (52, 4837210), (56, 4491695), (65, 3869768), (70, 3593356), (76, 3309670), (91, 2764120), (95, 2647736), (104, 2418605), (130, 1934884), (133, 1891240), (140, 1796678), (152, 1654835), (182, 1382060), (190, 1323868), (247, 1018360), (260, 967442), (266, 945620), (280, 898339), (364, 691030), (380, 661934), (455, 552824), (494, 509180), (520, 483721), (532, 472810), (665, 378248), (728, 345515), (760, 330967), (910, 276412), (988, 254590), (1064, 236405), (1235, 203672), (1330, 189124), (1729, 145480), (1820, 138206), (1976, 127295), (2470, 101836), (2660, 94562), (3458, 72740), (3637, 69160), (3640, 69103), (4940, 50918), (5320, 47281), (6916, 36370), (7274, 34580), (8645, 29096), (9880, 25459), (13832, 18185), (14548, 17290)]