81910077840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{218357}}^1$

素因数の和:218897

約数の個数: 120

約数和(自身を含む): 275610594168

約数和(自身を除く): 193700516328

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 521, 720, 1042, 1563, 2084, 2605, 3126, 4168, 4689, 5210, 6252, 7815, 8336, 9378, 10420, 12504, 15630, 18756, 20840, 23445, 25008, 31260, 37512, 41680, 46890, 62520, 75024, 93780, 125040, 187560, 218357, 375120, 436714, 655071, 873428, 1091785, 1310142, 1746856, 1965213, 2183570, 2620284, 3275355, 3493712, 3930426, 4367140, 5240568, 6550710, 7860852, 8734280, 9826065, 10481136, 13101420, 15721704, 17468560, 19652130, 26202840, 31443408, 39304260, 52405680, 78608520, 113763997, 157217040, 227527994, 341291991, 455055988, 568819985, 682583982, 910111976, 1023875973, 1137639970, 1365167964, 1706459955, 1820223952, 2047751946, 2275279940, 2730335928, 3412919910, 4095503892, 4550559880, 5119379865, 5460671856, 6825839820, 8191007784, 9101119760, 10238759730, 13651679640, 16382015568, 20477519460, 27303359280, 40955038920, 81910077840]

約数ペア:

[(1, 81910077840), (2, 40955038920), (3, 27303359280), (4, 20477519460), (5, 16382015568), (6, 13651679640), (8, 10238759730), (9, 9101119760), (10, 8191007784), (12, 6825839820), (15, 5460671856), (16, 5119379865), (18, 4550559880), (20, 4095503892), (24, 3412919910), (30, 2730335928), (36, 2275279940), (40, 2047751946), (45, 1820223952), (48, 1706459955), (60, 1365167964), (72, 1137639970), (80, 1023875973), (90, 910111976), (120, 682583982), (144, 568819985), (180, 455055988), (240, 341291991), (360, 227527994), (521, 157217040), (720, 113763997), (1042, 78608520), (1563, 52405680), (2084, 39304260), (2605, 31443408), (3126, 26202840), (4168, 19652130), (4689, 17468560), (5210, 15721704), (6252, 13101420), (7815, 10481136), (8336, 9826065), (9378, 8734280), (10420, 7860852), (12504, 6550710), (15630, 5240568), (18756, 4367140), (20840, 3930426), (23445, 3493712), (25008, 3275355), (31260, 2620284), (37512, 2183570), (41680, 1965213), (46890, 1746856), (62520, 1310142), (75024, 1091785), (93780, 873428), (125040, 655071), (187560, 436714), (218357, 375120)]