78868240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 160

約数和(自身を含む): 216950400

約数和(自身を除く): 138082160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 53, 55, 76, 80, 88, 89, 95, 106, 110, 152, 176, 178, 190, 209, 212, 220, 265, 304, 356, 380, 418, 424, 440, 445, 530, 583, 712, 760, 836, 848, 880, 890, 979, 1007, 1045, 1060, 1166, 1424, 1520, 1672, 1691, 1780, 1958, 2014, 2090, 2120, 2332, 2915, 3344, 3382, 3560, 3916, 4028, 4180, 4240, 4664, 4717, 4895, 5035, 5830, 6764, 7120, 7832, 8056, 8360, 8455, 9328, 9434, 9790, 10070, 11077, 11660, 13528, 15664, 16112, 16720, 16910, 18601, 18868, 19580, 20140, 22154, 23320, 23585, 27056, 33820, 37202, 37736, 39160, 40280, 44308, 46640, 47170, 51887, 55385, 67640, 74404, 75472, 78320, 80560, 88616, 89623, 93005, 94340, 103774, 110770, 135280, 148808, 177232, 179246, 186010, 188680, 207548, 221540, 259435, 297616, 358492, 372020, 377360, 415096, 443080, 448115, 518870, 716984, 744040, 830192, 886160, 896230, 985853, 1037740, 1433968, 1488080, 1792460, 1971706, 2075480, 3584920, 3943412, 4150960, 4929265, 7169840, 7886824, 9858530, 15773648, 19717060, 39434120, 78868240]

約数ペア:

[(1, 78868240), (2, 39434120), (4, 19717060), (5, 15773648), (8, 9858530), (10, 7886824), (11, 7169840), (16, 4929265), (19, 4150960), (20, 3943412), (22, 3584920), (38, 2075480), (40, 1971706), (44, 1792460), (53, 1488080), (55, 1433968), (76, 1037740), (80, 985853), (88, 896230), (89, 886160), (95, 830192), (106, 744040), (110, 716984), (152, 518870), (176, 448115), (178, 443080), (190, 415096), (209, 377360), (212, 372020), (220, 358492), (265, 297616), (304, 259435), (356, 221540), (380, 207548), (418, 188680), (424, 186010), (440, 179246), (445, 177232), (530, 148808), (583, 135280), (712, 110770), (760, 103774), (836, 94340), (848, 93005), (880, 89623), (890, 88616), (979, 80560), (1007, 78320), (1045, 75472), (1060, 74404), (1166, 67640), (1424, 55385), (1520, 51887), (1672, 47170), (1691, 46640), (1780, 44308), (1958, 40280), (2014, 39160), (2090, 37736), (2120, 37202), (2332, 33820), (2915, 27056), (3344, 23585), (3382, 23320), (3560, 22154), (3916, 20140), (4028, 19580), (4180, 18868), (4240, 18601), (4664, 16910), (4717, 16720), (4895, 16112), (5035, 15664), (5830, 13528), (6764, 11660), (7120, 11077), (7832, 10070), (8056, 9790), (8360, 9434), (8455, 9328)]