74581720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1637}}^1$

素因数の和:1732

約数の個数: 64

約数和(自身を含む): 180442080

約数和(自身を除く): 105860360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 67, 68, 85, 134, 136, 170, 268, 335, 340, 536, 670, 680, 1139, 1340, 1637, 2278, 2680, 3274, 4556, 5695, 6548, 8185, 9112, 11390, 13096, 16370, 22780, 27829, 32740, 45560, 55658, 65480, 109679, 111316, 139145, 219358, 222632, 278290, 438716, 548395, 556580, 877432, 1096790, 1113160, 1864543, 2193580, 3729086, 4387160, 7458172, 9322715, 14916344, 18645430, 37290860, 74581720]

約数ペア:

[(1, 74581720), (2, 37290860), (4, 18645430), (5, 14916344), (8, 9322715), (10, 7458172), (17, 4387160), (20, 3729086), (34, 2193580), (40, 1864543), (67, 1113160), (68, 1096790), (85, 877432), (134, 556580), (136, 548395), (170, 438716), (268, 278290), (335, 222632), (340, 219358), (536, 139145), (670, 111316), (680, 109679), (1139, 65480), (1340, 55658), (1637, 45560), (2278, 32740), (2680, 27829), (3274, 22780), (4556, 16370), (5695, 13096), (6548, 11390), (8185, 9112)]