15991160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 38685600

約数和(自身を除く): 22694440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 397, 424, 530, 760, 794, 1007, 1060, 1588, 1985, 2014, 2120, 3176, 3970, 4028, 5035, 7543, 7940, 8056, 10070, 15086, 15880, 20140, 21041, 30172, 37715, 40280, 42082, 60344, 75430, 84164, 105205, 150860, 168328, 210410, 301720, 399779, 420820, 799558, 841640, 1599116, 1998895, 3198232, 3997790, 7995580, 15991160]

約数ペア:

[(1, 15991160), (2, 7995580), (4, 3997790), (5, 3198232), (8, 1998895), (10, 1599116), (19, 841640), (20, 799558), (38, 420820), (40, 399779), (53, 301720), (76, 210410), (95, 168328), (106, 150860), (152, 105205), (190, 84164), (212, 75430), (265, 60344), (380, 42082), (397, 40280), (424, 37715), (530, 30172), (760, 21041), (794, 20140), (1007, 15880), (1060, 15086), (1588, 10070), (1985, 8056), (2014, 7940), (2120, 7543), (3176, 5035), (3970, 4028)]