172473640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{991}}^1$

素因数の和:1250

約数の個数: 64

約数和(自身を含む): 410688000

約数和(自身を除く): 238214360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 229, 380, 458, 760, 916, 991, 1145, 1832, 1982, 2290, 3964, 4351, 4580, 4955, 7928, 8702, 9160, 9910, 17404, 18829, 19820, 21755, 34808, 37658, 39640, 43510, 75316, 87020, 94145, 150632, 174040, 188290, 226939, 376580, 453878, 753160, 907756, 1134695, 1815512, 2269390, 4311841, 4538780, 8623682, 9077560, 17247364, 21559205, 34494728, 43118410, 86236820, 172473640]

約数ペア:

[(1, 172473640), (2, 86236820), (4, 43118410), (5, 34494728), (8, 21559205), (10, 17247364), (19, 9077560), (20, 8623682), (38, 4538780), (40, 4311841), (76, 2269390), (95, 1815512), (152, 1134695), (190, 907756), (229, 753160), (380, 453878), (458, 376580), (760, 226939), (916, 188290), (991, 174040), (1145, 150632), (1832, 94145), (1982, 87020), (2290, 75316), (3964, 43510), (4351, 39640), (4580, 37658), (4955, 34808), (7928, 21755), (8702, 19820), (9160, 18829), (9910, 17404)]