28999760

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4073}}^1$

素因数の和:4175

約数の個数: 40

約数和(自身を含む): 68198760

約数和(自身を除く): 39199000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 4073, 7120, 8146, 16292, 20365, 32584, 40730, 65168, 81460, 162920, 325840, 362497, 724994, 1449988, 1812485, 2899976, 3624970, 5799952, 7249940, 14499880, 28999760]

約数ペア:

[(1, 28999760), (2, 14499880), (4, 7249940), (5, 5799952), (8, 3624970), (10, 2899976), (16, 1812485), (20, 1449988), (40, 724994), (80, 362497), (89, 325840), (178, 162920), (356, 81460), (445, 65168), (712, 40730), (890, 32584), (1424, 20365), (1780, 16292), (3560, 8146), (4073, 7120)]