15001840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 120

約数和(自身を含む): 41983920

約数和(自身を除く): 26982080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 89, 98, 112, 140, 172, 178, 196, 215, 245, 280, 301, 344, 356, 392, 430, 445, 490, 560, 602, 623, 688, 712, 784, 860, 890, 980, 1204, 1246, 1424, 1505, 1720, 1780, 1960, 2107, 2408, 2492, 3010, 3115, 3440, 3560, 3827, 3920, 4214, 4361, 4816, 4984, 6020, 6230, 7120, 7654, 8428, 8722, 9968, 10535, 12040, 12460, 15308, 16856, 17444, 19135, 21070, 21805, 24080, 24920, 26789, 30616, 33712, 34888, 38270, 42140, 43610, 49840, 53578, 61232, 69776, 76540, 84280, 87220, 107156, 133945, 153080, 168560, 174440, 187523, 214312, 267890, 306160, 348880, 375046, 428624, 535780, 750092, 937615, 1071560, 1500184, 1875230, 2143120, 3000368, 3750460, 7500920, 15001840]

約数ペア:

[(1, 15001840), (2, 7500920), (4, 3750460), (5, 3000368), (7, 2143120), (8, 1875230), (10, 1500184), (14, 1071560), (16, 937615), (20, 750092), (28, 535780), (35, 428624), (40, 375046), (43, 348880), (49, 306160), (56, 267890), (70, 214312), (80, 187523), (86, 174440), (89, 168560), (98, 153080), (112, 133945), (140, 107156), (172, 87220), (178, 84280), (196, 76540), (215, 69776), (245, 61232), (280, 53578), (301, 49840), (344, 43610), (356, 42140), (392, 38270), (430, 34888), (445, 33712), (490, 30616), (560, 26789), (602, 24920), (623, 24080), (688, 21805), (712, 21070), (784, 19135), (860, 17444), (890, 16856), (980, 15308), (1204, 12460), (1246, 12040), (1424, 10535), (1505, 9968), (1720, 8722), (1780, 8428), (1960, 7654), (2107, 7120), (2408, 6230), (2492, 6020), (3010, 4984), (3115, 4816), (3440, 4361), (3560, 4214), (3827, 3920)]