20965800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:523

約数の個数: 96

約数和(自身を含む): 65933280

約数和(自身を除く): 44967480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 83, 100, 120, 150, 166, 200, 249, 300, 332, 415, 421, 498, 600, 664, 830, 842, 996, 1245, 1263, 1660, 1684, 1992, 2075, 2105, 2490, 2526, 3320, 3368, 4150, 4210, 4980, 5052, 6225, 6315, 8300, 8420, 9960, 10104, 10525, 12450, 12630, 16600, 16840, 21050, 24900, 25260, 31575, 34943, 42100, 49800, 50520, 63150, 69886, 84200, 104829, 126300, 139772, 174715, 209658, 252600, 279544, 349430, 419316, 524145, 698860, 838632, 873575, 1048290, 1397720, 1747150, 2096580, 2620725, 3494300, 4193160, 5241450, 6988600, 10482900, 20965800]

約数ペア:

[(1, 20965800), (2, 10482900), (3, 6988600), (4, 5241450), (5, 4193160), (6, 3494300), (8, 2620725), (10, 2096580), (12, 1747150), (15, 1397720), (20, 1048290), (24, 873575), (25, 838632), (30, 698860), (40, 524145), (50, 419316), (60, 349430), (75, 279544), (83, 252600), (100, 209658), (120, 174715), (150, 139772), (166, 126300), (200, 104829), (249, 84200), (300, 69886), (332, 63150), (415, 50520), (421, 49800), (498, 42100), (600, 34943), (664, 31575), (830, 25260), (842, 24900), (996, 21050), (1245, 16840), (1263, 16600), (1660, 12630), (1684, 12450), (1992, 10525), (2075, 10104), (2105, 9960), (2490, 8420), (2526, 8300), (3320, 6315), (3368, 6225), (4150, 5052), (4210, 4980)]