81275160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:905

約数の個数: 128

約数和(自身を含む): 262944000

約数和(自身を除く): 181668840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 43, 57, 60, 76, 86, 95, 114, 120, 129, 152, 172, 190, 215, 228, 258, 285, 344, 380, 430, 456, 516, 570, 645, 760, 817, 829, 860, 1032, 1140, 1290, 1634, 1658, 1720, 2280, 2451, 2487, 2580, 3268, 3316, 4085, 4145, 4902, 4974, 5160, 6536, 6632, 8170, 8290, 9804, 9948, 12255, 12435, 15751, 16340, 16580, 19608, 19896, 24510, 24870, 31502, 32680, 33160, 35647, 47253, 49020, 49740, 63004, 71294, 78755, 94506, 98040, 99480, 106941, 126008, 142588, 157510, 178235, 189012, 213882, 236265, 285176, 315020, 356470, 378024, 427764, 472530, 534705, 630040, 677293, 712940, 855528, 945060, 1069410, 1354586, 1425880, 1890120, 2031879, 2138820, 2709172, 3386465, 4063758, 4277640, 5418344, 6772930, 8127516, 10159395, 13545860, 16255032, 20318790, 27091720, 40637580, 81275160]

約数ペア:

[(1, 81275160), (2, 40637580), (3, 27091720), (4, 20318790), (5, 16255032), (6, 13545860), (8, 10159395), (10, 8127516), (12, 6772930), (15, 5418344), (19, 4277640), (20, 4063758), (24, 3386465), (30, 2709172), (38, 2138820), (40, 2031879), (43, 1890120), (57, 1425880), (60, 1354586), (76, 1069410), (86, 945060), (95, 855528), (114, 712940), (120, 677293), (129, 630040), (152, 534705), (172, 472530), (190, 427764), (215, 378024), (228, 356470), (258, 315020), (285, 285176), (344, 236265), (380, 213882), (430, 189012), (456, 178235), (516, 157510), (570, 142588), (645, 126008), (760, 106941), (817, 99480), (829, 98040), (860, 94506), (1032, 78755), (1140, 71294), (1290, 63004), (1634, 49740), (1658, 49020), (1720, 47253), (2280, 35647), (2451, 33160), (2487, 32680), (2580, 31502), (3268, 24870), (3316, 24510), (4085, 19896), (4145, 19608), (4902, 16580), (4974, 16340), (5160, 15751), (6536, 12435), (6632, 12255), (8170, 9948), (8290, 9804)]