81974760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4243}}^1$

素因数の和:4287

約数の個数: 128

約数和(自身を含む): 293345280

約数和(自身を除く): 211370520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1610, 1932, 2415, 2760, 3220, 3864, 4243, 4830, 6440, 8486, 9660, 12729, 16972, 19320, 21215, 25458, 29701, 33944, 42430, 50916, 59402, 63645, 84860, 89103, 97589, 101832, 118804, 127290, 148505, 169720, 178206, 195178, 237608, 254580, 292767, 297010, 356412, 390356, 445515, 487945, 509160, 585534, 594020, 683123, 712824, 780712, 891030, 975890, 1171068, 1188040, 1366246, 1463835, 1782060, 1951780, 2049369, 2342136, 2732492, 2927670, 3415615, 3564120, 3903560, 4098738, 5464984, 5855340, 6831230, 8197476, 10246845, 11710680, 13662460, 16394952, 20493690, 27324920, 40987380, 81974760]

約数ペア:

[(1, 81974760), (2, 40987380), (3, 27324920), (4, 20493690), (5, 16394952), (6, 13662460), (7, 11710680), (8, 10246845), (10, 8197476), (12, 6831230), (14, 5855340), (15, 5464984), (20, 4098738), (21, 3903560), (23, 3564120), (24, 3415615), (28, 2927670), (30, 2732492), (35, 2342136), (40, 2049369), (42, 1951780), (46, 1782060), (56, 1463835), (60, 1366246), (69, 1188040), (70, 1171068), (84, 975890), (92, 891030), (105, 780712), (115, 712824), (120, 683123), (138, 594020), (140, 585534), (161, 509160), (168, 487945), (184, 445515), (210, 390356), (230, 356412), (276, 297010), (280, 292767), (322, 254580), (345, 237608), (420, 195178), (460, 178206), (483, 169720), (552, 148505), (644, 127290), (690, 118804), (805, 101832), (840, 97589), (920, 89103), (966, 84860), (1288, 63645), (1380, 59402), (1610, 50916), (1932, 42430), (2415, 33944), (2760, 29701), (3220, 25458), (3864, 21215), (4243, 19320), (4830, 16972), (6440, 12729), (8486, 9660)]