256768560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4007}}^1$

素因数の和:4115

約数の個数: 120

約数和(自身を含む): 872220960

約数和(自身を除く): 615452400

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, 89, 90, 120, 144, 178, 180, 240, 267, 356, 360, 445, 534, 712, 720, 801, 890, 1068, 1335, 1424, 1602, 1780, 2136, 2670, 3204, 3560, 4005, 4007, 4272, 5340, 6408, 7120, 8010, 8014, 10680, 12021, 12816, 16020, 16028, 20035, 21360, 24042, 32040, 32056, 36063, 40070, 48084, 60105, 64080, 64112, 72126, 80140, 96168, 120210, 144252, 160280, 180315, 192336, 240420, 288504, 320560, 356623, 360630, 480840, 577008, 713246, 721260, 961680, 1069869, 1426492, 1442520, 1783115, 2139738, 2852984, 2885040, 3209607, 3566230, 4279476, 5349345, 5705968, 6419214, 7132460, 8558952, 10698690, 12838428, 14264920, 16048035, 17117904, 21397380, 25676856, 28529840, 32096070, 42794760, 51353712, 64192140, 85589520, 128384280, 256768560]

約数ペア:

[(1, 256768560), (2, 128384280), (3, 85589520), (4, 64192140), (5, 51353712), (6, 42794760), (8, 32096070), (9, 28529840), (10, 25676856), (12, 21397380), (15, 17117904), (16, 16048035), (18, 14264920), (20, 12838428), (24, 10698690), (30, 8558952), (36, 7132460), (40, 6419214), (45, 5705968), (48, 5349345), (60, 4279476), (72, 3566230), (80, 3209607), (89, 2885040), (90, 2852984), (120, 2139738), (144, 1783115), (178, 1442520), (180, 1426492), (240, 1069869), (267, 961680), (356, 721260), (360, 713246), (445, 577008), (534, 480840), (712, 360630), (720, 356623), (801, 320560), (890, 288504), (1068, 240420), (1335, 192336), (1424, 180315), (1602, 160280), (1780, 144252), (2136, 120210), (2670, 96168), (3204, 80140), (3560, 72126), (4005, 64112), (4007, 64080), (4272, 60105), (5340, 48084), (6408, 40070), (7120, 36063), (8010, 32056), (8014, 32040), (10680, 24042), (12021, 21360), (12816, 20035), (16020, 16028)]