30131720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{967}}^1$

素因数の和:1038

約数の個数: 64

約数和(自身を含む): 73180800

約数和(自身を除く): 43049080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 967, 1558, 1640, 1934, 3116, 3868, 3895, 4835, 6232, 7736, 7790, 9670, 15580, 18373, 19340, 31160, 36746, 38680, 39647, 73492, 79294, 91865, 146984, 158588, 183730, 198235, 317176, 367460, 396470, 734920, 753293, 792940, 1506586, 1585880, 3013172, 3766465, 6026344, 7532930, 15065860, 30131720]

約数ペア:

[(1, 30131720), (2, 15065860), (4, 7532930), (5, 6026344), (8, 3766465), (10, 3013172), (19, 1585880), (20, 1506586), (38, 792940), (40, 753293), (41, 734920), (76, 396470), (82, 367460), (95, 317176), (152, 198235), (164, 183730), (190, 158588), (205, 146984), (328, 91865), (380, 79294), (410, 73492), (760, 39647), (779, 38680), (820, 36746), (967, 31160), (1558, 19340), (1640, 18373), (1934, 15580), (3116, 9670), (3868, 7790), (3895, 7736), (4835, 6232)]