21439040

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:604

約数の個数: 112

約数和(自身を含む): 61886592

約数和(自身を除く): 40447552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 544, 560, 563, 595, 680, 952, 1088, 1120, 1126, 1190, 1360, 1904, 2240, 2252, 2380, 2720, 2815, 3808, 3941, 4504, 4760, 5440, 5630, 7616, 7882, 9008, 9520, 9571, 11260, 15764, 18016, 19040, 19142, 19705, 22520, 31528, 36032, 38080, 38284, 39410, 45040, 47855, 63056, 66997, 76568, 78820, 90080, 95710, 126112, 133994, 153136, 157640, 180160, 191420, 252224, 267988, 306272, 315280, 334985, 382840, 535976, 612544, 630560, 669970, 765680, 1071952, 1261120, 1339940, 1531360, 2143904, 2679880, 3062720, 4287808, 5359760, 10719520, 21439040]

約数ペア:

[(1, 21439040), (2, 10719520), (4, 5359760), (5, 4287808), (7, 3062720), (8, 2679880), (10, 2143904), (14, 1531360), (16, 1339940), (17, 1261120), (20, 1071952), (28, 765680), (32, 669970), (34, 630560), (35, 612544), (40, 535976), (56, 382840), (64, 334985), (68, 315280), (70, 306272), (80, 267988), (85, 252224), (112, 191420), (119, 180160), (136, 157640), (140, 153136), (160, 133994), (170, 126112), (224, 95710), (238, 90080), (272, 78820), (280, 76568), (320, 66997), (340, 63056), (448, 47855), (476, 45040), (544, 39410), (560, 38284), (563, 38080), (595, 36032), (680, 31528), (952, 22520), (1088, 19705), (1120, 19142), (1126, 19040), (1190, 18016), (1360, 15764), (1904, 11260), (2240, 9571), (2252, 9520), (2380, 9008), (2720, 7882), (2815, 7616), (3808, 5630), (3941, 5440), (4504, 4760)]