21653760

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5639}}^1$

素因数の和:5663

約数の個数: 72

約数和(自身を含む): 69168960

約数和(自身を除く): 47515200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5639, 11278, 16917, 22556, 28195, 33834, 45112, 56390, 67668, 84585, 90224, 112780, 135336, 169170, 180448, 225560, 270672, 338340, 360896, 451120, 541344, 676680, 721792, 902240, 1082688, 1353360, 1443584, 1804480, 2165376, 2706720, 3608960, 4330752, 5413440, 7217920, 10826880, 21653760]

約数ペア:

[(1, 21653760), (2, 10826880), (3, 7217920), (4, 5413440), (5, 4330752), (6, 3608960), (8, 2706720), (10, 2165376), (12, 1804480), (15, 1443584), (16, 1353360), (20, 1082688), (24, 902240), (30, 721792), (32, 676680), (40, 541344), (48, 451120), (60, 360896), (64, 338340), (80, 270672), (96, 225560), (120, 180448), (128, 169170), (160, 135336), (192, 112780), (240, 90224), (256, 84585), (320, 67668), (384, 56390), (480, 45112), (640, 33834), (768, 28195), (960, 22556), (1280, 16917), (1920, 11278), (3840, 5639)]