20955600

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{5821}}^1$

素因数の和:5845

約数の個数: 90

約数和(自身を含む): 72734246

約数和(自身を除く): 51778646

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 144, 150, 180, 200, 225, 240, 300, 360, 400, 450, 600, 720, 900, 1200, 1800, 3600, 5821, 11642, 17463, 23284, 29105, 34926, 46568, 52389, 58210, 69852, 87315, 93136, 104778, 116420, 139704, 145525, 174630, 209556, 232840, 261945, 279408, 291050, 349260, 419112, 436575, 465680, 523890, 582100, 698520, 838224, 873150, 1047780, 1164200, 1309725, 1397040, 1746300, 2095560, 2328400, 2619450, 3492600, 4191120, 5238900, 6985200, 10477800, 20955600]

約数ペア:

[(1, 20955600), (2, 10477800), (3, 6985200), (4, 5238900), (5, 4191120), (6, 3492600), (8, 2619450), (9, 2328400), (10, 2095560), (12, 1746300), (15, 1397040), (16, 1309725), (18, 1164200), (20, 1047780), (24, 873150), (25, 838224), (30, 698520), (36, 582100), (40, 523890), (45, 465680), (48, 436575), (50, 419112), (60, 349260), (72, 291050), (75, 279408), (80, 261945), (90, 232840), (100, 209556), (120, 174630), (144, 145525), (150, 139704), (180, 116420), (200, 104778), (225, 93136), (240, 87315), (300, 69852), (360, 58210), (400, 52389), (450, 46568), (600, 34926), (720, 29105), (900, 23284), (1200, 17463), (1800, 11642), (3600, 5821)]