21723120

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:224

約数の個数: 160

約数和(自身を含む): 76334400

約数和(自身を除く): 54611280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 89, 90, 108, 113, 120, 135, 144, 178, 180, 216, 226, 240, 267, 270, 339, 356, 360, 432, 445, 452, 534, 540, 565, 678, 712, 720, 801, 890, 904, 1017, 1068, 1080, 1130, 1335, 1356, 1424, 1602, 1695, 1780, 1808, 2034, 2136, 2160, 2260, 2403, 2670, 2712, 3051, 3204, 3390, 3560, 4005, 4068, 4272, 4520, 4806, 5085, 5340, 5424, 6102, 6408, 6780, 7120, 8010, 8136, 9040, 9612, 10057, 10170, 10680, 12015, 12204, 12816, 13560, 15255, 16020, 16272, 19224, 20114, 20340, 21360, 24030, 24408, 27120, 30171, 30510, 32040, 38448, 40228, 40680, 48060, 48816, 50285, 60342, 61020, 64080, 80456, 81360, 90513, 96120, 100570, 120684, 122040, 150855, 160912, 181026, 192240, 201140, 241368, 244080, 271539, 301710, 362052, 402280, 452565, 482736, 543078, 603420, 724104, 804560, 905130, 1086156, 1206840, 1357695, 1448208, 1810260, 2172312, 2413680, 2715390, 3620520, 4344624, 5430780, 7241040, 10861560, 21723120]

約数ペア:

[(1, 21723120), (2, 10861560), (3, 7241040), (4, 5430780), (5, 4344624), (6, 3620520), (8, 2715390), (9, 2413680), (10, 2172312), (12, 1810260), (15, 1448208), (16, 1357695), (18, 1206840), (20, 1086156), (24, 905130), (27, 804560), (30, 724104), (36, 603420), (40, 543078), (45, 482736), (48, 452565), (54, 402280), (60, 362052), (72, 301710), (80, 271539), (89, 244080), (90, 241368), (108, 201140), (113, 192240), (120, 181026), (135, 160912), (144, 150855), (178, 122040), (180, 120684), (216, 100570), (226, 96120), (240, 90513), (267, 81360), (270, 80456), (339, 64080), (356, 61020), (360, 60342), (432, 50285), (445, 48816), (452, 48060), (534, 40680), (540, 40228), (565, 38448), (678, 32040), (712, 30510), (720, 30171), (801, 27120), (890, 24408), (904, 24030), (1017, 21360), (1068, 20340), (1080, 20114), (1130, 19224), (1335, 16272), (1356, 16020), (1424, 15255), (1602, 13560), (1695, 12816), (1780, 12204), (1808, 12015), (2034, 10680), (2136, 10170), (2160, 10057), (2260, 9612), (2403, 9040), (2670, 8136), (2712, 8010), (3051, 7120), (3204, 6780), (3390, 6408), (3560, 6102), (4005, 5424), (4068, 5340), (4272, 5085), (4520, 4806)]